Electro Magnetic Induction And Alternating Currents Question 100

Question: For an ac circuit V=15sinωt and I=20cosωt the average power consumed in this circuit is [RPET 1999]

Options:

A) 300 Watt

B) 150 Watt

C) 75 Watt

D) zero

Show Answer

Answer:

Correct Answer: D

Solution:

P=VrmsIrmscosφ; since φ=90o. So P = 0



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