NEET 2009 PatternMedium
Q.In potentiometer experiment, balancing length is 200 cm for a cell. When a 4 Ω resistance is connected in series with the cell, balancing length is 160 cm. The internal resistance is
a
1 Ω
b
2 Ω
c
3 Ω
d
4 Ω
Correct Answer: Option A
The correct solution involves applying the fundamental concept to derive the final value step by step...