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The magnetic field B inside a long solenoid, carrying a current of 5.00A, is 3.14 x 10^-2T.

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The magnetic field B inside a long solenoid, carrying a current of 5.00A, is 3.14 x 10-2T. Find the number of turns per unit length of the solenoid.

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i = 25A, B = 3.14 × 10–2T, n = ?

= 5000turns/m

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