1. A circular coil consisting of a single loop of wire has a radius of 30.0 cm and carries a current of25 A. It is placed in an external magnetic field of 0.30 T. Find the torque on the wire when theplane of the coil makes an angle of 35° with the direction of the field.2. An electron enters a region of magnetic field of magnitude 0.010 0 T, traveling perpendicular tothe linear boundary of the region. The direction of the field is perpendicular to the velocity of theelectron. (a) Determine the time it takes for the electron to leave the "field-filled" region, notingthat its path is a semicircle. (b) Find the kinetic energy of the electron if the radius of itssemicircular path is 2.00 cm.

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A circular coil consisting of a single loop of wire has a radius of 30.0 cm and carries a current of 25 A. It is placed in an external magnetic field of 0.30 T. Find the torque on the wire when the plane of the coil makes an angle of 35° with the direction of the field.

A circular coil consisting of a single loop of wire has a radius of 30.0 cm and carries a current of 25 A. It is placed in an external magnetic field of 0.30 T. Find the torque on the wire when the plane of the coil makes an angle of 35° with the direction of the field.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter19: Magnetism

Section: Chapter Questions

Problem 70AP: A uniform horizontal wire with a linear mass density of 0.50 g/m carries a 2.0-A current. It is...

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Concept explainers

Magnetic Field Of Coaxial Cable

The word coaxial means same axis. So for a long straight cable to be coaxial, it must have concentric cylindrical shaped conductor around it. Coaxial cable (popularly called ‘coax’) has various applications ranging from current conductors to radiofrequency signal transmitters. This cable has lower emission losses and provides protection from electromagnetic interference which allows signals with less power to transmit over longer distances.For example, currents produced in the pickup of a stereo turntable generally travel to the amplifier through a coaxial cable.The self-inductance of a coaxial cable is another important characteristic, because it influences the propagation of electrical signals in the cable.

Question

1. A circular coil consisting of a single loop of wire has a radius of 30.0 cm and carries a current of
25 A. It is placed in an external magnetic field of 0.30 T. Find the torque on the wire when the
plane of the coil makes an angle of 35° with the direction of the field.
2. An electron enters a region of magnetic field of magnitude 0.010 0 T, traveling perpendicular to
the linear boundary of the region. The direction of the field is perpendicular to the velocity of the
electron. (a) Determine the time it takes for the electron to leave the "field-filled" region, noting
that its path is a semicircle. (b) Find the kinetic energy of the electron if the radius of its
semicircular path is 2.00 cm.

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