Questions
On rotating a point charge Q around a charge Q in a circle of radius r. The work done will be
detailed solution
Correct option is C
Since charge Q is moving on equipotential surface so work done is zero.Talk to our academic expert!
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A mass m = 20 g has a charge q = 3.0mC. It moves with a velocity of 20 m/s and enters a region of electric field of 80 N/C in the same direction as the velocity of the mass. The velocity of the mass after 3 seconds in this region is
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