11. When the distance between two charged particles is halved the coulomb force between them becomes :
(a) one fourth of the initial force
(b) four times the initial force
(c) double the initial force
(d) one-half of the initial force
12. If two charges each of one coulomb are separated by a distance 1 metre, than the force between them is approximately :
(a) 2.2 newton
(b) 8.85 × 1012 newton
(c) 1.6 × 1019 newton
(d) 9 × 109 newton
13. According to Gauss Law, ∫E. ds =
(a) q = ɛ0
(b) q / ɛ0
(c) ɛ0
(d) none of these
14. Gauss’s law can be applied to :
(a) Plane surface
(b) Curved surface
(c) Any surface
(d) Closed surface
15. Coulomb is that charge which when placed in free space at a distance of 1 m form an equal and similar charge repels it with a force of :
(a) 1/8 πɛ02
(b) 8 πɛ0
(c) 1/4 πɛ0
(d) 1/4 πɛ02
Related Posts
Electrostatics » Exercise - 14. The unit of electric field Intensity is : (a) Volt/Joule (b) Volt x Joule (c) Volt/metre (d) Volt x metre- Electrostatics » Exercise - 13. The unit of electric charge is : (a) Ohm (b) Ampear (c) Coulomb (d) Volt.
- Electrostatics » Exercise - 15. The S.I. Unit of electric Potential is : (a) Watt (b) Joule (c) volt (d) Ampear
- Electrostatics » Exercise - 115. Coulomb is that charge which when placed in free space at a distance of 1 m form an equal and similar charge repels it with a force of : (a) 1/8 πɛ02 (b) 8 πɛ0 (c) 1/4 πɛ0 (d) 1/4 πɛ02
- Electrostatics » Exercise - 112. If two charges each of one coulomb are separated by a distance 1 metre, than the force between them is approximately : (a) 2.2 newton (b) 8.85 × 1012 newton (c) 1.6 × 1019 newton (d) 9 × 109 newton