A Charge 5 microcoulomb is placed at a point. what is the work required to carry 1C of charge once round it in a circle of 12cm radius
Answers
A charge 5μC is placed at a point. what is the workdone required to carry 1C of charge once round it in a circle of 12cm radius ?
solution : Charge 1C revolve around the circle of radius 12 cm. so distance between charge and centre of circle ( where the other charge 5μC is located) remains constant.
it means, potential due to 1C charge at the centre always remains constant.
hence potential difference = ∆V = 0
by definition of potential difference,
∆V = W/q
⇒W = q ∆V = q × 0 = 0
Therefore the workdone required to carry 1C of charge once round it in a circle of 12cm radius.
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