Log in

WBCS Preliminary Examination 2016 — General Studies · Question 110 of 200

Q110
General SciencePhysics
Which of the following is not a conservative force?
  1. a.Gravitational force
  2. b.Frictional force
  3. c.Electrostatic force
  4. d.Magnetostatic force

Answer: (B) Frictional force

Frictional force is not a conservative force because the work done by friction depends on the path taken (not just start and end points) and energy is dissipated as heat. Gravitational, electrostatic, and magnetostatic forces are conservative — work done is path-independent.

Which of the following is not a conservative force? — WBCS Preliminary Examination 2016 Q110 | Prostuti360°