Electro Magnetic Induction And Alternating Currents Question 23
Question: A 120 volt ac source is connected across a pure inductor of inductance 0.70 henry. If the frequency of the source is 60 Hz, the current passing through the inductor is [MP PET 1994]
Options:
A) 4.55 amps
B) 0.355 amps
C) 0.455 amps
D) 3.55 amps
Show Answer
Answer:
Correct Answer: C
Solution:
$ Z=X_{L}=2\pi \times 60\times 0.7 $
$ \therefore i=\frac{120}{Z}=\frac{120}{2\pi \times 60\times 0.7}=0.455ampere $
