Electro Magnetic Induction And Alternating Currents Question 20
Question: An inductive circuit contains a resistance of 10 ohm and an inductance of 2.0 henry. If an ac voltage of 120 volt and frequency of 60 Hz is applied to this circuit, the current in the circuit would be nearly [CPMT 1990; MP PET 2002]
Options:
A) 0.32 amp
B) 0.16 amp
C) 048 amp
D) 0.80 amp
Show Answer
Answer:
Correct Answer: B
Solution:
$ Z=\sqrt{R^{2}+X_{L}^{2}} $ $ =\sqrt{10^{2}+{{(2\pi \times 60\times 2)}^{2}}}=753.7 $
$ \therefore i=\frac{120}{753.7}=0.159A $
