A 100 Hz a.c is flowing in a 14mH coil .Find its reactance
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Answer:
L = 14 mH = 14* 10 ^-3 H = 14 *10^-3 H
f = 100 Hz
As per the formula , Reactance of coil = Lω = L * 2*π*f
∴ Reactance of coil = 14*10^-3 * 2 * 3.14 * 100
= 879.2ohm
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