First slide

AC Circuits

Question

A 0.7 henry inductor is connected across a 120V – 60 Hz ac source. The current in the inductor will be very nearly

Moderate

A

4.55 amp
B

0.355 amp
C

0.455 amp
D

3.55 amp

Solution

$i = \frac{V}{X_{L}} = \frac{120}{2 \times 3 .14 \times 60 \times 0 .7} = 0 .455 A$

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