I Review I Constants A circular conducting ring with radius ro = 0.0420 m lies in the xy-plane in a region of uniform magnetic field B = Bo(1 – 3(t/to)² + 2(t/to)³]k. In this expression, Submit Previous Answers v Correct to = 0.0100 s and is constant, t is time, k is the unit vector in the +z-direction, and Bo = 0.0800 T is constant. At points a and b (see the figure (Figure 1)) there is a small gap in the ring with wires leading to an external circuit of resistance R = 12.0 N. There is no Part F magnetic field at the location of the external circuit, Determine the polarity of the emf in the ring at a time t = 1.21 x 10-2 s. O clockwise O counterclockwise Submit Request Answer Figure Part G 1 of 1> Determine the time at which the current through R reverses its direction. Express your answer in seconds. t = Submit Request Answer

I Review I Constants A circular conducting ring with radius ro = 0.0420 m lies in the xy-plane in a region of uniform magnetic field B = Bo(1 – 3(t/to)² + 2(t/to)³]k. In this expression, Submit Previous Answers v Correct to = 0.0100 s and is constant, t is time, k is the unit vector in the +z-direction, and Bo = 0.0800 T is constant. At points a and b (see the figure (Figure 1)) there is a small gap in the ring with wires leading to an external circuit of resistance R = 12.0 N. There is no Part F magnetic field at the location of the external circuit, Determine the polarity of the emf in the ring at a time t = 1.21 x 10-2 s. O clockwise O counterclockwise Submit Request Answer Figure Part G 1 of 1> Determine the time at which the current through R reverses its direction. Express your answer in seconds. t = Submit Request Answer

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter14: Inductance

Section: Chapter Questions

Problem 86CP: A rectangular copper ring, of mass 100 g and resistance 0.2 1, is in a region of uniform magnetic...

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