Q.
Potentiometer is used for

AAccurate measurement of emf of a cell or the potential difference (p.d.) between two points of an electric circuit.
BMeasurement of electrical resistance in the cell
CMeasurement of electric current in a cell
DMeasurement of capacitance of cell.

Correct Answer : (A)
Accurate measurement of emf of a cell or the potential difference (p.d.) between two points of an electric circuit.

Hints :

Potentiometer is used for Accurate measurement of emf of a cell or the potential difference (p.d.) between two points of an electric circuit.

In a meggar, controlling torque is provided by

Which of the following cannot be used to measure pressure?

Morning Exam