Q. “The surface integral of the normal component of the electric displacement D over any closed surface equals the charge enclosed by the surface”. The above statement is associated with Gauss’s law Kirchhoff s law Faraday’s law Lenz’s law Answer: Gauss’s law

Q. The force between two charges is 120 N. If the distance between the charges is doubled, the force will be 60 N 30 N 40 N 15 N Answer: 30 N

Q. If 5 J of work is required to shift 10 C charge from one place to another then potential difference is 0.5 V 2 V 5 V 10 V Answer: 0.5 V

Q. The electrostatic force between two charges of one coulomb each and placed at a distance of 0.5 m will be 36 x 10fa 36 x 107 N 36 x 108 N 36 x 109 N Answer: 36 x 109 N

Q. For closer tolerances which of the following capacitors is usually preferred ? Paper capacitor Mica capacitor Ceramic disc capacitor None of the above Answer: Mica capacitor

Q. Paper capacitors usually have a tolerance of ± 5% ± 10% ± 15% ± 20% Answer: ± 10%

Q. Which of the following capacitors will have the least value of breakdown voltage ? Mica Paper Ceramic Electrolytic Answer: Electrolytic

Q. The value of dielectric constant for vacuum is taken as zero 1 4 10 Answer: 1

Q. Which of the following capacitors is marked for polarity ? Air Paper Mica Electrolytic Answer: Electrolytic