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A solenoid of length 1m, area of cross-s...

A solenoid of length 1m, area of cross-section `4.0cm^(2)` and having 4000 turns is placed inside another solenoid of 2000 turns having a cross-section area `6 cm^(2)` and length 2m. The mutual inductance between the solenoids is `xpixx10^(-5)H`. Find out the value x.

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