In the given figure, potential difference between A and B is 

(1) 0

(2) 5 volt

(3) 10 volt

(4) 15 volt

(3)

Equivalent resistance R=10+102=15kΩ

Current i = 3015=2×103A

Hence, potential difference between A and B  

V=2×1032×10×103=10Volt.

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