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A point charge q moves from point P to p...

A point charge q moves from point P to pont S along the path PQRS (fig.) in a uniform electric field E pointing parallel to the poistive direction of the X-axis. The coordinates of the points P, Q, R and S are(a, b, O), (2a, O, O)(a, -b,`ulO`) and `(O, O, O) respectively. The work done by the field in the above process is given by the expresison............

Text Solution

Verified by Experts

Since electric field is conservative in nature, the work done by the field along `PQRS` will be the same as alo9ng `p` to `M` to `S`
Work done from `P` to to `M=vecF,overlinePM=F(PM)cos90^(@)=0`

Work done from `M` to `S=vecF,overlineMS=F(MS)cos180^(@)=-qEa`
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