Electro Magnetic Induction And Alternating Currents Question 69
Question: In a LCR circuit the pd between the terminals of the inductance is 60 V, between the terminals of the capacitor is 30V and that between the terminals of resistance is 40V. the supply voltage will be equal to ?? [KCET 2004]
Options:
A) 50 V
B) 70 V
C) 130 V
D) 10 V
Show Answer
Answer:
Correct Answer: A
Solution:
$ V=\sqrt{V_{R}^{2}+{{(V_{L}-V_{C})}^{2}}} $ $ =\sqrt{{{(40)}^{2}}+{{(60-30)}^{2}}}=50V $
