What do you mean by variable resistance?

What do you mean by variable resistance?

An electronic component that is used to vary the amount of current that flows through a circuit. It works by sliding a wiper terminal across a resistive material, typically a thin film or chunk of carbon or a resistive wire made of nickel chromium or tungsten alloys.

What is variable resistance class 10?

Variable Resistance: The component of an electric circuit which is used to regulate the current, without changing the voltage from the source; is called variable resistance. Rheostat: This is a device which is used in a circuit to provide variable resistance.

What is variable resistance answer in one word?

Answer: variable resistance is defined as changing the resistance by controlling the current flowing in the circuit.

What is fixed and variable resistance?

Variable resistors means that a resistor can change its resistance value through the control of a person or himself. Fixed resistance means that it cannot change its value.

What is a variable resistance give one example of it?

Variable Resistors are resistors whose resistance values can vary according to some factor applied to them. For example, potentiometers are variable resistors that changes when a user adjusts the knob. Photoresistors are variable resistors which change according to the light that strikes its surface.

What is variable resistance or rheostat?

A rheostat is a variable resistor which is used to control current. They are able to vary the resistance in a circuit without interruption. Rheostats were often used as power control devices, for example to control light intensity (dimmer), speed of motors, heaters, and ovens.

What is variable resistance and rheostat?

A variable resistor is a resistor of which the electric resistance value can be adjusted. When only two terminals are used, it functions as a variable resistance and is called a rheostat. Electronically controlled variable resistors exist, which can be controlled electronically instead of by mechanical action.

What is variable resistance class 12?

The value of resistance in resistors like rheostat can be changed easily ; this is generally refered to as variable resistance.

What is variable resistance in Brainly?

Answer: The component of an electric circuit which is used to regulate the current; without changing the voltage from the source is called variable resistance.

What is variable resistance Toppr?

Variable resistor is such a resistor whose resistance value can be adjusted as when required to a desired value. Reason.

What is variable resistance and rheostat Class 10?

Actually Rheostat is a Variable resistance, it means we can change the value resistance in the circuit.. According to Ohm’s Law -> V = I x R or R = V/I. As per above relation… By Changing resistance in a circuit We can control the flow of electric current in circuit…

What is fixed resistance?

The resistors that have a defined value of the resistance are called fixed resistors. The resistance of fixed resistors is not adjustable. The resistance of these resistors does not change with voltage or temperature.