A) always along a line of force
B) along a line of force, if its initial velocity is zero
C) along a line of force, if it has same initial velocity in the direction of an active angle with the line of force
D) None of the above
Correct Answer: B
Solution :
Because E point along the tangent to the lines of force. If initial velocity is zero, then due to the force, moves in the direction of E.
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