1.

Two coaxial solenoids are made by winding thin insulated wire over a pipe of cross sectional area A= 10 cm^(2) and length = 20 cm. If one of the solenoids has 300 turns and the other 400 turns, their mutual inductance is (mu_(0) = 4pi xx 10^(-7) T m A^(-1))

Answer»

`2.4pi xx10^(-5)H`
`4.8pi xx10^(-4)H`
`4.8pi xx10^(-5)H`
`2.4pi xx10^(-4)H`

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