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 theaverage 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 thediagram what is the average induced emf as it is collapsed and what is the direction of the inducedcurrent? (Remember to use conventional current)X XX Xхх

Part (1): Given: The number of turns is 200. The radius of the coil is 6 cm. The magnetic field is…

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

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

Physics for Scientists and Engineers with Modern Physics

10th Edition

ISBN:9781337553292

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter28: Magnetic Fields

Section: Chapter Questions

Problem 26P: Consider the system pictured in Figure P28.26. A 15.0-cm horizontal wire of mass 15.0 g is placed...

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Question

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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Consider the system pictured in Figure P28.26. A 15.0-cm horizontal wire of mass 15.0 g is placed between two thin, vertical conductors, and a uniform magnetic field acts perpendicular to the page. The wire is free to move vertically without friction on the two vertical conductors. When a 5.00-A current is directed as shown in the figure, the horizontal wire moves upward at constant velocity in the presence of gravity. (a) What forces act on the horizontal wire, and (b) under what condition is the wire able to move upward at constant velocity? (c) Find the magnitude and direction of the minimum magnetic Field required to move the wire at constant speed. (d) What happens if the magnetic field exceeds this minimum value? Figure P28.26