In a physics laboratory experiment, a coil with 250 turns enclosing an area of 11.1 cm2 is rotated during the time inter

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In a physics laboratory experiment, a coil with 250 turns
enclosing an area of 11.1 cm2 is rotated during the time
interval 3.50×10−2 s from a position in which
its plane is perpendicular to Earth's magnetic field to one in
which its plane is parallel to the field. The magnitude of Earth's
magnetic field at the lab location is
5.50×10−5 T .
A)
What is the total magnitude of the magnetic flux ( Φinitial
) through the coil before it is rotated?
Express your answer numerically, in webers, to at least three
significant figures.
B)
What is the magnitude of the total magnetic flux Φfinal
through the coil after it is rotated?
Express your answer numerically, in webers, to at least three
significant figures.
C)
What is the magnitude of the average emf induced in the
coil?
Express your answer numerically (in volts) to at least three
significant figures.