Electro Magnetic Induction And Alternating Currents Question 138

Question: In the circuit neglecting source resistance the voltmeter and ammeter reading will respectively, will be [KCET (Engg.) 2001]

Options:

A) 0V, 3A

B) 150V, 3A

C) 150V, 6A

D) 0V, 8A

Show Answer

Answer:

Correct Answer: D

Solution:

The voltage $ V_{L} $ and $ V_{C} $ are equal and opposite so voltmeter reading will be zero.

Also $ R=30\Omega ,X_{L}=X_{C}=25\Omega $

So $ i=\frac{V}{\sqrt{R^{2}+{{(X_{L}-X_{C})}^{2}}}}=\frac{V}{R}=\frac{240}{30}=8A $



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