Electro Magnetic Induction And Alternating Currents Question 102

Question: An ac supply gives 30 V r.m.s. which passes through a 10 Ω resistance. The power dissipated in it is [AMU (Med.) 2001]

Options:

A) 902,W

B) 90,W

C) 452,W

D) 45,W

Show Answer

Answer:

Correct Answer: B

Solution:

P=Vrms2R=(30)210=90 W



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