The drawing shows a set of equipotential surfaces seen in cross-sections. Each i
ID: 2270483 • Letter: T
Question
The drawing shows a set of equipotential surfaces seen in cross-sections. Each is labeled according to its electric potential. A 2.5 x 10-7 C point charge is placed at position A. Find the work done on the point charge by the electric force when it is moved (a) from A to B, and (b) A to C.
The drawing shows a set of equipotential surfaces seen in cross-sections. Each is labeled according to its electric potential. A 2.5 x 10-7 C point charge is placed at position A. Find the work done on the point charge by the electric force when it is moved (a) from A to B, and (b) A to C.Explanation / Answer
Work Done =QV
Here we take V as potential difference
From A to B
V = 550 - 350 = 200
Work Done = (2.5*10^-7)*(200) = 5*10^-5 J
From A to C
V = 350 - 350 = 0
Work Done = (2.5*10^-7)* (0) = 0 J
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