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Question

A pure inductor of self inductance 1 H is connected across an alternating voltage of 115 V and frequency 60 Hz. The reactance XL and peak current respectively are

A
37.1Ω, 0.43 A
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B
337.1Ω, 0.43 A
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C
377.1Ω, 0.43 A
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D
3.7Ω, 0.42 A
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Solution

The correct option is C 377.1Ω, 0.43 A
XL=ωL
=2πfL
=2π60×1
=377.1Ω
peak current = peak voltageXL
=115×2377.1=0.43 A
So, XL=377.1
peak current, I=0.43 A.

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