what is apotentiometer
Answers
Answered by
3
Answer:
A potentiometer is a three-terminal resistor with a sliding or rotating contact that forms an adjustable voltage divider. If only two terminals are used, one end and the wiper, it acts as a variable resistor or rheostat.
Answered by
0
Answer:
POTENTIOMETER
- Potentiometer is a meaning device , which is used to measure potential difference just like voltmeter.
- Potentiometer works on null deflection principle.
- Wire of potentiometer is made up of alloy of manganin, constantan , eureka.
Applications of potentiometer
- Comparison of emf of two cells.
- To find out the internal resistance of a primary cell.
- To find out current in the circuit.
- To measure the potential difference across a resistance.
- To find out emf of a cell.
Here,
emf is the electromotive force.
Attachments:
Similar questions