A uniform magnetic field B = 1.7 x 10-4 T exists in +x direction. A test negative charge (q = 2e, and m = 2.67 x 10-31 kg) is shot through the field away from us (toward the screen) with a speed of 5.0 x 107 m/s. Find the magnitude and direction of the force FB on the test charge.

A uniform magnetic field B = 1.7 x 10-4 T exists in +x direction. A test negative charge (q = 2e, and m = 2.67 x 10-31 kg) is shot through the field away from us (toward the screen) with a speed of 5.0 x 107 m/s. Find the magnitude and direction of the force FB on the test charge.

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter30: Magnetic Fields And Forces

Section: Chapter Questions

Problem 43PQ

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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

A uniform magnetic field B = 1.7 x 10-4 T exists in +x direction. A test negative charge (q
= 2e, and m = 2.67 x 10-31 kg) is shot through the field away from us (toward the screen)
with a speed of 5.0 x 107 m/s. Find the magnitude and direction of the force FB on the
test charge.
O FB = 2.72 x 10-15 N upward, +y direction.
FB = 2.71 x 10-18 N in downward, -y direction
O FB = 2.63 x 10-13 N toward us away from the plane of the screen
O FB = 3.91 x 10-¹1 N in -x direction

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