0
- The characteristics of some circuit components cannot be predicted with complete accuracy. Variable resistors are provided in circuits involving these components sometimes to make up for these unavoidable variations.
- Variable resistors are often used to make it possible for users set suitable volumes in headphones and speakers.
- Variable resistors may be used to set time constants in circuits that also include capacitive or inductive elements.
What else can I help you with?
What does a variable resistor diagram illustrate?
A variable resistor diagram illustrates how a resistor can change its resistance value, allowing for adjustable control of electrical current in a circuit.
How connect a variable resistor to circuit?
To connect a variable resistor to a circuit, identify the two terminals of the variable resistor. Connect one terminal to the input or output of the circuit where you want to adjust the resistance. Connect the other terminal to either the ground or another reference point depending on the circuit's design. Ensure that the resistance value on the variable resistor is adjusted as needed for your circuit application.
Is it possible to apply voltmeter across a variable resistor?
Yes, it is possible to apply a voltmeter across a variable resistor. The voltmeter would measure the voltage drop across the variable resistor as the resistance changes. This can help in monitoring and adjusting the voltage across the resistor in a circuit.
What is another name for a rheostat?
A variable resistor is another name for a rheostat.
What are the independent dependent and control variables in series circuit containing 1ammeter a resistor a light bilulb and 3cells?
Independent variable: the number of cells in the circuit. Dependent variable: the current measured by the ammeter. Control variable: resistance of the resistor, type of light bulb.
How do you test a variable resistor?
how do test a variable resistor
Why you use resistor with variable resistor?
Often we want to easily change a resistor value, so we use a variable resistor. For example, we may want to change the resistor that controls the power sent to a LED, so we can easily make it brighter or dimmer. Often if we use a variable resistor, there is only a very narrow range that is useful. Continuing our example, sometimes we use several LEDs, and we use the variable resistor to set them all to the same brightness. In this case, the resistance range that sets the LED to be twice as bright as the the other LEDs, and the resistance range that sends so much power to the LED that it is permanently destroyed is even less useful. So we add a fixed resistor in series with the variable resistor -- the fixed resistor sets the minimum net resistance, no matter how we turn the knob on the variable resistor. In our example, the addition of the fixed resistor allows us to turn the variable resistor throughout its whole range, and the LED gets brighter and dimmer; without that resistor, a certain range of the knob on the variable resistor would allow so much power to go to the LED that it would be destroyed.
Where you can find a variable resistor on Multisim?
possibly use a potentiometre
Where is a variable resistor in your home?
If you have a light switch where you can brightener it or dim it that is a VARIABLE RESISTOR.
Does a variable resistor have a bias?
A variable resistor means that the resistance can be varied, usually by using a slide. A fixed resistor can not be varied.
Is Light dependent resistor an example of resistor?
yes, a variable resistor
Function of a variable resistor?
Variable resistor is an resistor that can change its resistance manually, by rotating a handle or a screw.
What is the difference between a fixed resistor and a variable resistor?
its the colour of the fixed and the variable we define it by its power and name
What is a variable resister?
The volume knob on an audio device (radio, TV) is an example of a variable resistor. A variable resistor is also known as a potentiometer.
What is variable resistance?
The volume knob on an audio device (radio, TV) is an example of a variable resistor. A variable resistor is also known as a potentiometer.
What products use Variable resistor?
Toasters and lightbulbs.AnswerA resistor is an circuit component. So, while toasters and light bulbs have resistance, they are not resistors!
What is a resistor whose value can varied over a range of value called?
Variable resistor. The value of the variable resistor can be changed at any given moment.
