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As per this diagram a point charge +q is...

As per this diagram a point charge `+q` is placed at the origin `O`. Work done in taking another point charge `-Q` from the point `A(0, a)` to another point `B(a, 0)` along the staight path `AB` is:

A

Zero

B

`((-qQ)/(4piin_(0))1/(a^(2)))sqrt2a`

C

`((qQ)/(4piin_(0))1/(a^(2)))a/(sqrt2)`

D

`((qQ)/(4piin_(0))1/(a^(2)))sqrt2a`

Text Solution

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