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The figure in the attachment is an mcq of Gauss law. Please give the answer with explanation.

The figure in the attachment is an mcq of Gauss law. Please give the answer with explanation.

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Grade:12

1 Answers

Vaibhav Singh
57 Points
6 years ago
Flux is given by E.A =EA\cos \theta\hat{}\hat{n} where \hat{n} points isarea vector pointing away from surface.In this question at point A whic is a diametric point, at surface near A electricfflus is -EA as \hat{n} is in opposite direction to E and at farther surface it is EA. Therefore  total flux due to A is 0. Similar is the  case with point  C. But  at point B and D there is only  one  surface to allow electric field to pass through. Therefore due to B and D flux is -EA (non zero). Hence, flux remains unchanged due to A and C only.

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