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The current through a solenoid increases...

The current through a solenoid increases at a constant rate, then induced current:

A

(a) is constant and is in the direction of the induced current.

B

(b) is constant and is in the direction opposite to that of the inducing current.

C

(c) increases with time and is in the direction of the inducing current.

D

(d) increases with time and opposite to the direction of the inducing current.

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