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 $



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