The potential difference across the terminals of a storage battery not connected in any circuit is observed to be 12 V. When it is connected to an external resistance the potential difference across the terminals is observed to be 11 V while the current in the external resistance is 3 A. What is the internal resistance of the battery?

A. 2.0 ohms
B. 0.33 ohm
C. 5.5 ohms
D. 1.0 ohm
E. Zero ohms


Answer: B

Physics & Space Science

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