Chapter 4 Electrostatic Fields MCQs 12 min Score: 0 Attempted: 0/12 Subscribe 1. . Coulomb is the unit of which quantity? (A) Force (B) Permittivity (C) Charge (D) Field strengthShow All Answers 2. . Coulomb law is employed in (A) Electrostatics (B) Magnetostatics (C) Electromagnetics (D) Maxwell TheoryShow All Answers 3. . Find the force between 2C and -1C separated by a distance 1m in air (in newtons). (A) 18 × 10⁹ (B) 18 × 10⁹ (C) 18 × 10⁻⁹ (D) 18 × 10⁻⁹Show All Answers 4. . The Coulomb law is an implication of which law? (A) Ampere law (B) Gauss law (C) Lenz law (D) Biot Savart lawShow All Answers 5. . Which of the following correctly states Gauss law? (A) Electric flux is equal to charge (B) Electric flux per unit volume is equal to charge (C) Electric field is equal to charge density (D) Electric flux per unit volume is equal to volume charge densityShow All Answers 6. . The electric flux density is the (A) Product of permittivity and electric field intensity (B) Product of number of flux lines and permittivity (C) Product of permeability and electric field intensity (D) Product of number of flux line and permeabilityShow All Answers 7. . A point charge 2nC is located at origin. What is the potential at (1,0,0)? (A) 12 (B) 14 (C) 16 (D) 18Show All Answers 8. . The potential difference in an open circuit is (A) Zero (B) Unity (C) Infinity (D) All of aboveShow All Answers 9. . The potential due to a dipole at a point P from it is the (A) Sum of potentials at the charges (B) Difference of potentials at the charges (C) Multiplication of potentials at the charges (D) Ratio of potentials at the chargesShow All Answers 10. . Dipoles in any electric field undergo (A) Magnetism (B) Electromagnetism (C) Magnetization (D) PolarizationShow All Answers 11. . Equipotential surface is a (A) Real surface (B) Complex surface (C) Imaginary surface (D) Existing surfaceShow All Answers 12. . If the electric potential is given, which of the following cannot be calculated? (A) Electrostatic energy (B) Electric field intensity (C) Electric flux density (D) PermittivityShow All Answers
