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Poistive and negative point charges of e...

Poistive and negative point charges of equal magnitude are kept at `(0, 0, a/2)` and `(0, 0, (-a)/(2))` respectively. The work done by the electric field when another poistive point charge is moved from `(-a, 0, 0)` to `(0, a, 0)` is

A

positive

B

negative

C

zero

D

depends on the path connecting the initial and final positions

Text Solution

Verified by Experts

The correct Answer is:
C
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Knowledge Check

  • Positive and negative point charges of equal magnitude are kept at (0,0, (a)/(2)) and (0,0, (-a)/(2)) respectively. The work done by the electric field when another positive charge is moved from (-a,0,0) to (0,a,0) is

    A
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  • Two point charges q and –q are at positions (0,0,d) and (0,0, –d) respectively . What is the electric field at (a,0,0 ) ?

    A
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    B
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    C
    `(-2qd)/(4piepsilon_0(d^2+a^2)^(3//2))hatk`
    D
    `(-qd)/(4piepsilon_0(d^2+a^2)^(3//2))hatk`

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