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AB is part of a circuit as shown that absorbs energy at a rate of 50W. E is an emf device that has no internal resistance. |
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Answer» Potential difference across AB is 48V. Resistance ABSORBS energy at the rate of 2 W. Potential difference across AB is VAB. I = 50W. `V_(AB) = 50V` Drop across RESISTOR is `2V`, THEREFORE emf of E is 48 V. As AB is absorbing energy at the rate of 50 W, 48W is being absorbed by E. Thus, E is on charging i.e., current is entering from positive terminal of E. |
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