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A charge 8 mC is located at the origin. ...

A charge 8 mC is located at the origin. Calculate the work done in taking a small charge `-2 xx 10^(-9)` C from point P(0, 0, 3 cm) to a point Q(0, 4 cm, 0), via point R(0, 6 cm, 9 cm).

A

2.4 J

B

1.2 J

C

0.6 J

D

`-1.2` J

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