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Four idenbtial charges +50 mu C each are...

Four idenbtial charges `+50 mu C` each are placed, one at each corner of a square of side `2 m`. How much external energy is required to bring another charge of `+50 mu C` from infinity to the centre of the square
(Given `(1)/(4pi epsilon_(0)) = 9 xx 10^(9)(Nm^(2))/(C^(2)))`

A

64 J

B

41 J

C

16 J

D

10 J

Text Solution

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The correct Answer is:
A
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DC PANDEY-ELECTROSTATIC POTENTIAL AND CAPACITORS-(A) Chapter exercises
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  11. A point charge is surrounded symmetrically by six identical charges at...

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  19. Four capacitors are connected in a circuit as shown in the figure. The...

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  20. In the given network capacitance, C(1) = 10muF, C(2) = 5 muF and C(3) ...

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