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Displacement Current

When a test c...

Question

When a test charge is brought in from infinity along the perpendicular bisector of an electric dipole ,the work done is

A

positive

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B

Zero

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C

Negative

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D

None of theses

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Solution

The correct option is A positive
Test charge is brought in from infinity along the perpendicular bisector
Work done never $(- V e)$ in sign.
In this test $+ q$ and perpendicularity hence
Work done $= + q \times E$
$= (+ V e)$

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