Question: 2 0 . Two coils are coupled through a mutual inductance M . The current I 1 through one of the coils as a function

20. Two coils are coupled through a mutual inductance M. The current I1 through one of
the coils as a function of time is represented by the equation:
sin
Which of the following expressions corresponds to the emf induced in the second
coil?
a. cos
b. sin
c. cos
d.
cos
e.
sin

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