A round resistance coil is a laboratory apparatus used in creating and adjusting electrical resistance.
These coils are commonly used in electrical experiments to measure the between current, voltage, and resistance, also to measure the resistance of other circuit components.
The resistance can be adjusted by changing the length of the wire used or by changing the diameter of the coil.
Rheostat 500ohm 1.2 A is used for a variety of laboratory demonstrations, such as is an adjustable resistor used in applications, require the adjustment of current or the varying of resistance in an electric circuit.
The rheostat can adjust generator characteristics, dim lights, and start or control the speed of motors.
Rheostat is used in a circuit to change the resistance of the circuit, so that the different current values can be obtained.