Electro Magnetic Induction And Alternating Currents Question 7
Question: An alternating voltage is connected in series with a resistance R and an inductance L If the potential drop across the resistance is 200 V and across the inductance is 150 V, then the applied voltage is [CPMT 1990]
Options:
A) 350 V
B) 250 V
C) 500 V
D) 300 V
Show Answer
Answer:
Correct Answer: B
Solution:
The applied voltage is given by $ V=\sqrt{V_{R}^{2}+V_{L}^{2}} $ $ V=\sqrt{{{(200)}^{2}}+{{(150)}^{2}}} $ $ =250\ volt $
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