The terminal voltage of a battery is 4.0V when supplying a current of 2.0A, and...

JAMB 1993

The terminal voltage of a battery is 4.0V when supplying a current of 2.0A, and 2.0V when supplying a current of 3.0A. The internal resistance of the battery is

A. 0.5 \(\Omega\)
B. 1.0\(\Omega\)
C. 2.0\(\Omega\)
D. 4.0\(\Omega\)

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Correct Answer: Option C

Explanation

E = 4 + 2r and E = 2 + 3r

therefore, r = 2\(\Omega\)

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The terminal voltage of a battery is 4.0V when supplying a current of 2.0A, and...

Correct Answer: Option C

Explanation

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