Published by:
CGP EDU Academic Team
Published on: September 12, 2026
A current of 2 A flows through a 2 Ω resistor when connected across a battery. The same battery supplies a current of 0.5 A when connected across a 9 Ω resistor The internal resistance of the battery is
A
0.5 Ω
B
C
D
1 Ω
Text Solution
Verified by ExpertsThe correct answer is:
B
Let the internal resistance of battery be r,
According to question 
and 
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