Navigate

The net electric force on a charge of +3μC at the mid-point on the line joining two

The net electric force on a charge of +3μC at the mid-point on the line joining two charges of magnitude +2μC and -2μC seperated by the same distance of 6mm, is

Options

(a) 6000N
(b) 500N
(c) 60N
(d) zero

Correct Answer:

zero

Explanation:

From Coulomb’s law, force due to same charge is repulsive and that due to opposite is attractive.

F = K [(2×3/3²) – (2×3/3²)] = 0

JK2013
admin:

Related Questions

  1. If v is the speed of sound in air, then the shortest length of the closed pipe
  2. If radius of earth’s orbit is made 1/4, the duration of a year will become
  3. The displacement of particle is given by x=aₒ+(a₁t/2)-(a₂t²/3) what is acceleration?
  4. The potential energy of a 1 kg particle free to move along the x-axis is given by
  5. If vectors A=cos wti + sin wtj and B= cos wt/2 i + sin wt/2 j are functions of time,