Consider the following figure. @ (a) A conducting loop in the shape of a square of edge length = 0.360 m carries a current I = 8.20 A as in the figure above. Calculate the magnitude and direction of the magnetic field at the center of the square. magnitude μT direction into the page ✓✓ (b) If this conductor is reshaped μT magnitude direction into the page ✓✓ form a circular loop and carries the same current, what the value of the magnetic field at the center?

Consider the following figure. @ (a) A conducting loop in the shape of a square of edge length = 0.360 m carries a current I = 8.20 A as in the figure above. Calculate the magnitude and direction of the magnetic field at the center of the square. magnitude μT direction into the page ✓✓ (b) If this conductor is reshaped μT magnitude direction into the page ✓✓ form a circular loop and carries the same current, what the value of the magnetic field at the center?

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter12: Sources Of Magnetic Fields

Section: Chapter Questions

Problem 25P: A long, straight, horizontal wire carries a left-to-right current of 20 A. If the wire is placed in...

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A toroid has a major radius R and a minor radius r and is tightly wound with N turns of wire on a hollow cardboard torus. Figure P31.6 shows half of this toroid, allowing us to see its cross section. If R r, the magnetic field in the region enclosed by the wire is essentially the same as the magnetic field of a solenoid that has been bent into a large circle of radius R. Modeling the field as the uniform field of a long solenoid, show that the inductance of such a toroid is approximately L=120N2r2R Figure P31.6
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