1.A circular coil (200 turn radius of 6.0 cm) is rotated in a uniform magnetic field (B = 3.6x104 T) At t = 0 the coil is perpendicular to the field and at t= 0.015s the coil is parallel to the field what is the average emf induced in the coil? %3D

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1.A circular coil (200 turn radius of 6.0 cm) is rotated in a uniform magnetic field (B = 3.6x10-4 T) At t
= 0 the coil is perpendicular to the field and at t = 0.015s the coil is parallel to the field what is the
average emf induced in the coil?
2.A square loop of wire with an area of 2.5x10-3 m2 is perpendicular to a uniform magnetic field (B =
2.2x10-2 T). If the square collapsed to an area of essentially 0 m2 in a time of 0.100 s as shown in the
diagram what is the average induced emf as it is collapsed and what is the direction of the induced
current? (Remember to use conventional current)
X X
X X
хх
Transcribed Image Text:1.A circular coil (200 turn radius of 6.0 cm) is rotated in a uniform magnetic field (B = 3.6x10-4 T) At t = 0 the coil is perpendicular to the field and at t = 0.015s the coil is parallel to the field what is the average emf induced in the coil? 2.A square loop of wire with an area of 2.5x10-3 m2 is perpendicular to a uniform magnetic field (B = 2.2x10-2 T). If the square collapsed to an area of essentially 0 m2 in a time of 0.100 s as shown in the diagram what is the average induced emf as it is collapsed and what is the direction of the induced current? (Remember to use conventional current) X X X X хх
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