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An electrical charge `2xx10^-8` C is placed at the point `(1,2,4)` m. At the point `(4,2,0) `m, the electricA. potential will be 36 VB. field will along y-axisC. field will increase if the space between the points is filled with a dielectricD. All of the above |
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Answer» Correct Answer - A `r=sqrt((4-1)^2+(2-2)^2+(0-4)^2)` `=5m` `V=1/(4piepsilon).q/r` `=((9xx10^9)(2xx10^-8))/5=36V` Field is in the direction of `r=r_p-r_q` |
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