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Question
A coil of 200 turns carries a current of 0.4 A. If the magnetic flux of 4 mWb is linked with each turn of the coil, find the inductance of the coil.
Solution
Given data:
N = 200
i = 0.4 A
ΦB = 4 mWb = 4 × 10-3 Wb
L = ?
NΦBi = Li
L = `("N"phi_"B")/"i"`
L = `(200 xx 4 xx 10^-3)/0.4`
`= (cancel(200) xx cancel(40) xx 10^-3)/cancel(4)`
L = 2H
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