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
Capacitors and Capacitance » Exercise - 17. The capacity of Parallel Plate capacitor is C. If the distance between the plates is halved then its capacity is : (a) C/2 (b) C/4 (c) 2 C (d) 4 C