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Answer to Question #61326 in Electromagnetism for muhammad umar

Question #61326

3) Which of the following is NOT correct?
a) Electric charge cannot be produced by frictional forces
b) Electric charge is conserved
c) Electric charges are integral multiple of the electronic charge
d) induced charges are the result of charge separation within a material

4) Which of the following is not true of an electrostatic force?
a) it acts along the line joining the point charges
b) it obeys an inverse square law
c) it is mutually attractive or repulsive
d) it is weaker than the gravitational attraction between the charged particles.
Expert's answer
a) Electric charge cannot be produced by frictional forces

d) it is weaker than the gravitational attraction between the charged particles

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