Electro Magnetic Induction And Alternating Currents Question 2

Question: Current in the circuit is wattless, if

Options:

A) Inductance in the circuit is zero

B) Resistance in the circuit is zero

C) Current is alternating

D) Resistance and inductance both are zero

Show Answer

Answer:

Correct Answer: B

Solution:

Because power $ =i^{2}R, $ if R = 0, then P = 0.



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