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As shown in the figure below, a charge +...

As shown in the figure below, a charge +2C is situated at the origin O and another charge +5C is on the x-axis at the point A. The later charge from the point A is then brought to a point B on the y-axis. The word done is (given `(1)/(4pi epsi_(0)) =9 xx 10^(9) m//F`)

A

`45 xx 10^(9)J`

B

`90 xx 10^(9)J`

C

zero

D

`-45 xx 10^(9)J`

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