The reactance of a coil when used in the domestic ac power supply ( 220 V – 50 Hz) is 100Ω. The self-inductance of the coil is nearly :

# The reactance of a coil when used in the domestic ac power supply ( 220 V - 50 Hz) is 100$\mathrm{\Omega }$. The self-inductance of the coil is nearly :

1. A

3.2 henry

2. B

0.32 henry

3. C

2.2 henry

4. D

0.22 henry

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