Resistor
part · 1850 · Industrial Revolution
A component with a set resistance.
Principles and materials it uses
- Electrical resistance — uses. Sets a resistance.
- Nickel — is made of. Wire-wound resistors use nickel alloys.
- Carbon — is made of. Later — carbon.
Where it is used
- Voltmeter — is part of. The series resistor gives the voltmeter a high resistance so it barely draws current from the circuit.
What it is a kind of
- Heating element — includes. A heater is a resistor designed to release heat.
- Rheostat — includes. A rheostat is a resistor whose resistance can be changed.
- Potentiometer — includes. A variable resistor.
- Thermistor — includes. A resistor.
- Photoresistor — includes. A resistor.
- Varistor — includes. A resistor.