PracticeMedium
Q.A cell balances at 300 cm on a potentiometer wire. When a 4 Ω resistor is connected across the cell, balancing length becomes 240 cm. Internal resistance of cell is
a
1 Ω
b
1.5 Ω
c
2 Ω
d
2.5 Ω
Correct Answer: Option A
The correct solution involves applying the fundamental concept to derive the final value step by step...