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  4. In a series L-R circuit, under which condition the power loss will be least for an a.c voltage source?

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Q. In a series $L-R$ circuit, under which condition the power loss will be least for an a.c voltage source?

NTA AbhyasNTA Abhyas 2020

Solution:

The power loss in an a.c circuit will be minimum when resistance is low so that inductor is dominating the circuit.