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Four charges +q, +q, -q, and -q are plac...

Four charges `+q, +q, -q, and -q` are placed, respectively, at the corners `A,B,C, and D` of a square of side `a`, arranged in the given order. `E and F` are the midpoints of sides `BC and CD`, respectively, `O` is the center of square.
The work done in carrying a charge `e` from `O` to `F` is.

Text Solution

Verified by Experts

The correct Answer is:
`0, (4sqrt(2) qk)/a^(2), 0, (4Qqk)/a [1/sqrt(5)-1]`
where `k=1/(4pi in_(0))`
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