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Class 12th Physics 2018 Set1 Delhi Board Paper Solution

Question 24

Define electric flux. Is it a scalar or a vector quantity? A point charge q is at a distance d/2 directly above the centre of a square of side ‘d’, as shown in the figure. Use Gauss’s law to obtain the expression for the electric flux through the square.


(b) If the point charge is now moved to a distance ‘d’ from the centre of the square and the side of the square is doubled, explain how the electric flux be affected.



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