10 question-answer on electric flux 1. A cylinder of radius R and length l is placed in a uniform electric field E parallel to the axis of the cylinder. The total flux over the curved surface of the cylinder is: (a) Zero (b) πR 2 E (c) 2 πR 2 E (d) E/ πR 2 Ans: (a) 2. Electric flux at a point in an electric field is: (a) Positive (b) Negative (c) Zero (d) None of these Ans: (c) 3. Electric flux over a surface in an electric field may be (a) Positive (b) Negative (c) Zero (d) Positive, negative, zero Ans: (d) 4. If a unit charge is taken from one point to another over an equipotential surface, then (a) ...
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