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July 24, 2014

Homework Help: Physics concept question

Posted by Robert on Monday, March 7, 2011 at 2:10pm.

A long straight horizontal wire carries a current I = 2.10 A to the left. A positive 1.00 C charge moves to the right at a distance 4.50 m above the wire at constant speed v = 2250 m/s. What are the magnitude and the direction of the magnetic force on the charge?

h t tp:// postimage. org/image/2sdm39490/

1. Select the source(s) responsible for the magnetic field that exerts a force on the moving charge?

a. the charge
b. the current-carrying wire
c. the charge and the current-carrying wire.

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