A square of side 20 cm is enclosed by a surface of sphere of radius 80 cm. Square and sphere have the same centre. Four charges + 2 × 10 –6 C, –5 × 10 –6 C, –3 × 10 6 C, + 6 × 10 –6 C are located at the four corners of a square, then outgoing flux from spherical surface in N-m 2 /C will be-
Text Solution
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Identify the charges located at the four corners of the square: 
, and 
.
Calculate the net charge enclosed by the spherical surface by summing up the individual charges:
Perform the arithmetic to find the net charge:
Apply Gauss's Law to find the outgoing total flux:
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