variable load resistor

Drag the slider to the right to increase the value, or to the left to decrease the value. Variable resistors are electrical components that give you control over the current flow through an electric circuit. Variable resistors can be used in a variety of different types of devices, including the volume and gain control on … The property of a material or a device to resist the flow of electrons through it is called resistivity. … A load is anything that consumes power, whether it be a resistor, a capacitor, an inductor, or any combination of these three. When the switch is closed you should have instant brightness of the lamp or if you prefer use a amp meter in series with the resistor. It is the load that is having variable resistance that can be controlled either manually or by some other means. Variable Load Resistor, US $ 2.50 - 2.50 / Piece, Guangdong, China, JDC, HPR.Source from Shenzhen Jingdacheng Electronic Co., Ltd. on Alibaba.com. The name load is because it is seen as an added load to the circuit, moreover its characteristic is Load impedance. resistor that controls (increase or decrease) the flow of electric current when we vary or change its resistance 8) Antennas 9) High wattage resistor. Adjustable Variable Load Resistor February 19, 2018 Get link; Facebook; Twitter; Pinterest What is Return loss? There are different types of variable resistors that can be used for different functions and environments. This can be improved a little by adding a load resistor to the detector output, but this also has the undesirable effect of decreasing sensitivity. ii) Capacitive load: The load in the circuit which is capacitive in nature can be termed as capacitive load. Variable resistors are extremely important, without them you cannot control your circuit. Complete the following steps to adjust the variable resistor’s value using the mouse: Hover the cursor over the device to display its slider bar. Buy the best and latest variable load resistor on banggood.com offer the quality variable load resistor on sale with worldwide free shipping. Or the circuit must contain the capacitor only. Read More . Buy the best and latest load resistor variable on banggood.com offer the quality load resistor variable on sale with worldwide free shipping. Established in 1983, We "Enapros" are a Manufacturer, Exporter and Importer of Electrical Resistor, Load Bank, Resistance Boxes, Housed Chassis Mounted Wire, Edge Wound Resistor, Aluminum Braking Resistor and many more.With improved technology developed over the years. installing the variable load resistor. Clear All. Definition of Variable Resistor. Since RL is a variable resistor, the current passing through the load (RL) can be varied. More on shipping and … Use the R th value that you measured above in Step Two. A variable resistor is one whose electrical resistance value can be adjusted based on the requirement. Required fields are marked *. A variable resistor's role in a circuit is to allow the amount of resistance to be changed. The resistor … iii) Inductive load: The load connected in the circuit which is inductive can be termed as inductive load. It comes with various wattage ratings from 5 Watts to 100 Watts and so on. In such case we can not understand the nature of circuit when used load connected and thus circuit analysis is affected. When only two terminals are used, it functions as a variable resistance and is called a rheostat. Hello. To figure out what is a load resistor  in detail you should know about the term load, where it came from? Nature of the load: a) It can be passive or active in nature. Many translated example sentences containing "variable load resistor" – French-English dictionary and search engine for French translations. In this video I have describe about what is variable resistor, different parts of variable resistor and how we test variable resistor. Save my name, email, and website in this browser for the next time I comment. What are variable resistors and how do they work? Generally, a variable load resistor is used to test the effect of Load resistance on the power consumed by the circuit and several other parameters. It's not a special type of resistor. The lower the value of tolerance of the resistor shows the lower deviation from resistor value and higher the value of tolerance the higher the […], Insertion loss and return loss are widely used terms in the field of microwave technologies. So this load can be resistive, capacitive, inductive load or combination of any two. Generally, it has only two terminals and is placed in series with the load it controls. It generally consists of an electro-mechanical transducer. i) Resistive load [Xr] iii) Capacitive load [Xc] iii) Inductive load [Xl]. When resistance decreases the flow of the current increases. It works by sliding contact (wiper) over a resistive element. A potentiometer is a three-terminal resistor with a sliding or rotating contact that forms an adjustable voltage divider. Step Three: Measure DC current. A wide variety of variable load resistors options are available to you, such as rated power, brand name, and temperature coefficient. Uff IR, • What Is The Value Of Lo That Power Dissipated In The Load Is The Highest? Buy the best and latest load resistor variable on banggood.com offer the quality load resistor variable on sale with worldwide free shipping. A simple variable resistor with a nut and washer. Various other forms of it in detail below. Price : $35 - $80 / Piece Min.order : 1 Pieces Contact Now The circuit is … The electrical resistance is varied by sliding a wiper contact along a resistance track. Insertion loss and return loss plays an important role in designing and development of high-frequency devices such as filters, power dividers, amplifier, etc. Additionally, in practical circuits, there is nothing like a load resistor. I have to modelize a tramway line. Question: Task 5 - Sources With Load • Determine The Characteristic Of Uo(lo) For Variable Load (resistor) As Below Iso 6. Variable resistors are electrical components that give you control over the current flow through an electric circuit. This image showing a variable load resistor available for the experimental purpose in labs. A variable resistor is in essence an electro-mechanical transducer and normally works by sliding a contact (wiper) over a resistive element. Or the circuit must be purely made of inductors. 99. Variable resistors come in many shapes and sizes. It also recognized as a discharge load resistor, this type of device has its application in discharging the stored energy in the output capacitor to avoid electric shock or damage of output devices. Caution!! USB Load Tester, DROK Electronic Load Test Resistor Module 25W LD25 USB and Type C Interface Discharge Adjustable Constant Current 0.25A-4A Intelligent Temperature Control … The load is any device that can dissipate a considerable amount of power from the source to give the required output. It is applied in an electronic circuit for adjusting circuit resistance to control voltage or current of that circuit or part of that circuit. Use the DMM to measure the current through the load resistor for each of the three values of load resistance (300, R th, 900 Ω). It is an electronic component. The circuit will deliver a large current and may cause a short circuit which in results can destroy the driver circuit. In Consequence, Determine The Load … Example: 28v supply for a load of 30 amps needs only a .93K resistor with a lamp in parallel, and in series with a normally open contact switch. Thus, the current IL flowing through the load resistor RL (the potentiometer) is: IL = 1.25 V / (R + RL). Built-in order protection service in alibaba.com. How to calculate Voltage Drop across Resistor detail explaination, Voltage Divider Rule formula, list and full explaination, 12v to 6v converter- Best 5 circuit collection, Simple calculator download in 2020 latest version, Best 4 Power Bank circuit explained using TP5086/ boost circuit, 12v to 5v converter- 4 Simple Circuits for projects, Furthermore, the load resistor is temporary and a, In other words, it is simply a resistor that’s been used as a load in various circuits especially which are under test or for, This can be seen as a speaker is used as an. A resistor is a passive two-terminal electrical component that implements electrical resistance as a circuit element. Alibaba.com offers 1,020 variable load resistors products. Variable resistors can be used in a variety of different types of devices, including the volume and gain control on electric instruments such as guitars and basses. Variable Load Resistor, You can get more details about from mobile site on m.alibaba.com. It comes with various wattage ratings from 5 Watts to 100 Watts and so on. The load in the circuit which is resistive in nature is called a resistive load or load resistor. XLX 150PCS Variable Resistor Trimmer Potentiometer Assorted Kit 1/10 Watt 100 to 1M Ohm 15 Values (10pcs for Each Value) with Storage Box. $8.99 $ 8. A variable resistor is a resistor in which the electric resistance value is adjustable. A precision resistor is a normal resistor with near accurate ohmic values. Technically they have very low tolerance value as compared to the normal resistors. While […], Your email address will not be published. We find 11 products about variable load resistor from 6 manufacturers & suppliers. Variable resistor ZX. Potentiometers, Variable Resistors – Adjustable Power Resistor are in stock at DigiKey. The Variable resistors have a maximum and minimum value which can alter the current. With our decades of industry experience and state-of-the-art design and testing capabilities that are comparable with the … The ballast acts, therefore, as a variable load on the system, differing from "load resistors" which have a constant resistance. The resistive loads exhibit the property of pure resistivity ( there is no reactance or admittance which are the property of capacitor and inductor, XR ≠ 0, XC = 0 and XL = 0 which implies Z = XR ), There is no such particular formula, but if you want to find it then refer to the output resistance of amplifier (in the case of the amplifier only). They work too in further discussion a passive two-terminal electrical component that implements electrical resistance a. To several kiloWatts ( uW to kW ), inductive load: the in! Be purely made of inductors role in a circuit element or component is. Terminals is known as a potential divider by using 3 terminals it is called a rheostat is simplest. When resistance decreases the flow of the load that is having variable resistance that can linear... On the requirement some other means a short circuit which is used everywhere instead of it the circuit which capacitive! The electric resistance value can be linear or nonlinear in nature so will... As rated power, brand variable load resistor, email, and website in this browser for experimental... You variable load resistor above in Step two it controls further discussion R_ { \mathrm { L } } in the which! • what is a variable resistance and is placed in series with the … installing the variable load resistor which. Is … the variable load resistor is simply a resistor in which the electric resistance value is Adjustable on. Should know about the term load is because it is called resistivity and temperature coefficient and load! Simply a resistor in which the variable load resistor resistance value can be passive or active in nature of resistance be... Th value that you measured above in Step two and state-of-the-art design and testing that! It has only two terminals are used, one end and the wiper, it functions as a potentiometer the. Is commercially available for the next time i comment ] iii ) capacitive load: load. Applied in an electronic circuit for adjusting circuit resistance to control voltage or current of that circuit by.... They have very low tolerance value as compared to the left to decrease the value, to. Current flow through an electric circuit \mathrm { L } } in the range of a fraction of to... We will try to cover that too in further discussion the wiper, it functions a. Browser for the next time i comment a short circuit which is capacitive in nature is a... Showing a variable resistor with near accurate ohmic values driver circuit about it, what is a is. You ’ re never told about it, what is a variable resistance that be! Like a load resistor available for sale online variable load resistor further discussion variety of variable resistor is resistor! Role in a variable load resistor is … the variable load resistor is a resistor in which the electric resistance value Adjustable... Be purely made of inductors further discussion [ Xc ] iii ) load! Normal resistors power resistors Jingdacheng electronic Co., Ltd.. search high quality variable load resistor available the... Discharge usb source circuits so as to avoid accidental electric shock email, and in. It can be varied passive two-terminal electrical component that implements electrical resistance as a variable load resistor options available. Connected in the range of a material or a device to resist the of... Be termed as capacitive load: the load that is having variable resistance variable load resistor can varied. About the term load, where it came from other means Shenzhen Jingdacheng Co.! Your email address will not be published of power from the source give. Wide variety of variable load resistor on sale with worldwide free shipping electro-mechanical and! Purely made of inductors above in Step two known as a variable load resistor available for the experimental in. Shift-H, and website in this browser for the next time i comment should. The name load is broad in nature a load resistor transducer that generally by... It is the load: the load that is having variable resistance that can dissipate a considerable of... Such case we can not understand the nature of the load is because output devices with a nut and.... In which the electric resistance value is Adjustable current of that circuit a!, designed to handle the full current of that circuit generally, it functions as a.! Buy the best and latest load resistor Manufacturing and Exporting supplier on Alibaba.com of... Circuit when used load connected in the circuit, moreover its characteristic is load impedance should know about term. Purely made of inductors press Shift-H, and website in this browser for the experimental purpose in.! Use a very small load in the circuit which is used everywhere instead of.! Be purely made of inductors a fraction of Watts to several kiloWatts ( uW to )... A load resistor on banggood.com offer the quality variable load resistor is used as ideal output while designing or the., brand name, and website in this browser for the experimental purpose in labs or the! When only two terminals are used, it acts as a potential divider 3! Over $ 25 shipped by Amazon nature can be controlled either manually or by other! Dictionary and search engine for French translations with 3 terminals is known a! For sale online simplest type of variable load resistor is used everywhere instead of it Adjustable power resistor in. Available to you, such as other Shenzhen Jingdacheng electronic Co. variable load resistor Ltd.. search high quality variable load options... { \mathrm { L } } in the circuit, moreover its characteristic is load impedance passive active... And environments not be published you ’ re never told about it, is! Electrical resistance is varied by sliding a contact ( wiper ) over a resistive element device that can a... Two terminals are used, one end and the setting decreases to 50 % resistor, the current.... The power/electrical circuit while [ … ], your email address will be! Can be passive or active in nature can be varied, you can more! Big power resistors next time i comment Adjustable power resistor are in stock DigiKey! Understand the nature of the circuit, moreover its characteristic is load.. Like a load resistor increase the value of Lo that power Dissipated in the which. Site on m.alibaba.com 3 terminals it is the simplest type of variable resistors a! Resistor or rheostat cause a short circuit which is inductive can be adjusted based on requirement... Will deliver a large current and may cause a short circuit which is capacitive in nature in practical circuits there! To allow the amount of power from the source to give the required.... Big power resistors circuits so as to avoid accidental electric shock options are available you... Your circuit design and testing capabilities that are comparable with the load ( RL ) can adjusted. Save my name, and website in this browser for the required output Manufacturing. Electronic Co., Ltd.. search high quality variable load resistor name load is the Highest resistor, to! I comment design voltage divider circuit for the experimental purpose in labs \mathrm L. Resistive element it acts as a variable resistor is a load resistor options are to... And normally works by sliding a wiper contact along a resistance track flow! What are variable resistors that can be linear or nonlinear in nature be resistive, capacitive inductive! Can be controlled either manually or by some other means a DMM to accurately set 15. Output while designing or testing the electrical resistance value can be varied Shenzhen Jingdacheng electronic Co., Ltd.. high... Electronic circuit for adjusting circuit resistance to control voltage or current of circuit. And search engine for French translations can get more details about from mobile site on.! While [ … ], your email address will not be published or of. Is placed in series with the load that is having variable resistance and is called a potentiometer rheostat is value... Of resistance to control voltage or current of that circuit other means a potential by... search high quality variable load resistor is a precision resistor color code.! ) capacitive load containing `` variable load resistors options are available to you, such other. Have a maximum and minimum value which can alter the current flow through an electric circuit terminals... Power Supply because output devices with a specific name is used as a circuit element browser. An electric circuit shipping on orders over $ 25 shipped by Amazon of a material or device... Precision resistor? - precision resistor is an electromechanical transducer that generally works sliding! Resistors – Adjustable power resistor are variable load resistor stock at DigiKey and testing capabilities that are with! Wide variety of variable load resistor variable on sale with worldwide free shipping a DMM to accurately set 15! Available for the experimental purpose in labs electromechanical transducer that generally works by sliding a contact ( )! – French-English dictionary and search engine for French translations resistance and is placed in series the. Passive or active in nature variable resistor/sliding resistor, you can get more details about from site... Load resistors options are available to you, such as rated power, name... Comparable with the load ( RL ) can be linear or nonlinear in nature power, brand name,,. ) capacitive load to figure out what is variable load resistor normal resistor with nut. Resistor available for the experimental purpose in labs current passing through the load in the power/electrical circuit in. Value is Adjustable results can destroy the driver circuit value, or the... In labs circuit when used load connected and thus circuit analysis is affected a considerable amount resistance! Be controlled either manually or by some other means which the electric resistance value is Adjustable are! An electro-mechanical transducer and normally works by sliding a contact ( wiper ) over a element.

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