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JAMB Physics 2024 Paper

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Question : 43

Total: 125

What is the inductance reactance of a coil of 7H when connected to a 50Hz a.c circuit?

2200 $\Omega$
2000 $\Omega$
1200 $\Omega$
1100 $\Omega$

Solution:

X $_{L}$ = 2 $\pi$ fL

L = 7H, f = 50Hz

X $_{L}$ = 2 x 3.142 x 7 x 50 = 2199.40 $\approx\text{eq}$ 2200 $\Omega$

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