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Two coils are wound around the same cylindrical form. When the current in the first coil...

Two coils are wound around the same cylindrical form. When the current in the first coil is
decreasing at a rate of -0.242 A/s, the induced emf in the second coil has magnitude 1.65 x
10-3 V and the mutual inductance of the two coils is 6.82 mH. If the current in the first coil
becomes constant, what happens to the mutual inductance?

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