Current Attempt in Progress A magnetic field is passing through a loop of wire whose area is 0.019 m². The direction of the magnetic field is parallel to the normal to the loop, and the magnitude of the field is increasing at the rate of 0.21 T/s. (a) Determine the magnitude of the emf induced in the loop. (b) Suppose the area of the loop can be enlarged or shrunk. If the magnetic field is increasing as in part (a), at what rate (in m^2/s) should the area be changed at the instant when B= 2.2 T if the induced emf is to be zero? Use a minus sign if the area is to be shrunk. (a) Number i (b) Number i Units Units

Current Attempt in Progress A magnetic field is passing through a loop of wire whose area is 0.019 m². The direction of the magnetic field is parallel to the normal to the loop, and the magnitude of the field is increasing at the rate of 0.21 T/s. (a) Determine the magnitude of the emf induced in the loop. (b) Suppose the area of the loop can be enlarged or shrunk. If the magnetic field is increasing as in part (a), at what rate (in m^2/s) should the area be changed at the instant when B= 2.2 T if the induced emf is to be zero? Use a minus sign if the area is to be shrunk. (a) Number i (b) Number i Units Units

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter25: Electromagnetic Induction

Section: Chapter Questions

Problem 71A

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