A positive charge moves near a very long wire carrying a current as shown. If the 3.9 C charge moves at 9×105 m/s and is 11 cm away from the 3 A current in the long wire, what is the magnitude of the force on the charge? (in N) a. 1.91×101 b. 6.01×101 c. 1.05×107 d

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Microscopic view of current

In physics, the term current is expressed as the rate of flow of electric charges across the area per unit time (I=q/t). It propagates along in the direction of the motion of positive charges. When the current is caused by the motion of electrons, the direction of the current is opposite to the flow.