Questions

The power supplied by battery shown in the diagram is (ammeter is ideal)

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Zero

14.6 W

20.25 W

32.6 W

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detailed solution

Correct option is B

Let I is current through battery Let x be current through 3Ω resistance x×315=0.3 ⇒ x=1.5 A∴ I=1.8A P=I2R=14.6 W

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