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A solenoidal coil has 50 turns per centi...

A solenoidal coil has `50` turns per centimetre along its length and a cross-sectional area of `4 xx 10^(-4) m^(2)`. `200` turns of another wire is wound round the first solenoid co-axially. The two coils are electrically insulated from each other. Calculate the mutual inductance between the two coils.

Text Solution

Verified by Experts

`n_1 =50` turns per cm
=5000 turns per metre
`n_2l=200,A=4xx10^(-4)m^2,M=mu_0n_1(n_2l)A`
`=4pixx10^(-7)xx5000xx200xx4xx10^(-4)H`
`=5.03 xx10^(-4) H`
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