A cell of internal resistance 0.01Ω can be measured accurately using the
A
Ohm meter
B
metre bridge
C
potentiometer
D
electroscope
Verified Correct Answer: C.
Physical Principles & Numerical Solution
A cell with internal resistance can be measured accurately using a potentiometer.
A potentiometer is an instrument used to measure the potential difference (voltage) across a component without drawing any current. This is crucial because drawing current can affect the measurement due to the internal resistance of the cell.
Source: Myschool Past Questions Archive (Record #714)