Question
Physics Question on Resistance
For a battery the electromotive force is 1.5 V. Terminal velocity is 1.25 V. power supplied to external resistance is 2.5 W. Find the internal resistance of the battery
A
0.125Ω
B
0.25Ω
C
0.5Ω
D
0.1Ω
Answer
0.125Ω
Explanation
Solution
The correct option is (A): 0.125Ω.