Electro Magnetic Induction And Alternating Currents Question 57
Question: The reactance of a coil when used in the domestic ac power supply (220 volts, 50 cycles per second) is 50 ohms. The inductance of the coil is nearly [MP PMT 2000]
Options:
A) 2.2 henry
B) 0.22 henry
C) 1.6 henry
D) 0.16 henry
Show Answer
Answer:
Correct Answer: B
Solution:
$ X_{L}=2\pi \nu ,L,\Rightarrow ,L=\frac{X_{L}}{2\pi \nu }=\frac{50}{2\times 3.14\times 50}=0.16,H $
BETA
