PracticeMedium
Q.When a resistance of 2 Ω is connected across the terminals of a cell, the current is 0.5 A. When the resistance is increased to 5 Ω, the current is 0.25 A. The emf of the cell is
a
V
b
V
c
V
d
V
Correct Answer: Option C
The correct solution involves applying the fundamental concept to derive the final value step by step...