If a current of 4A produces a magnetic flux of `10^(-3)` Wb per turn in a coil of 1000 turns, then the self inductance of the coil is
If a current of 4A produces a magnetic flux of `10^(-3)` Wb per turn in a coil of 1000 turns, then the self inductance of the coil is
A. 0.1 H
B. 0.15 H
C. 0.25 H
D. 0.4 H
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Correct Answer - C
`N phi = LI :. L = (N phi)/(I) = (1000 xx 10^(-3))/(4) = 0.25 H`.
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