One solenoid is centered inside another. The outer one has a length of $47\mathrm{.}0$ cm and contains $6800$ coils, while the coaxial inner solenoid is $4\mathrm{.}0$ cm long and $0\mathrm{.}180$ cm in diameter and contains $19$ coils. The current in the outer solenoid is changing at $38\mathrm{.}0$ A$/$s

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Part A

What is the mutual inductance of these solenoids?

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M

$=$

nothing

H

Request$$Answer

Part B

Find the emf induced in the inner solenoid.

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Ein

$=$

nothing

V

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