Question
A large nonconducting sheet M is given a uniform charge density. Two uncharged small metal rods A and B are placed near the sheet as shown in figure:
  1. M attracts A.
  2. M attracts B.
  3. A attracts B.
  4. B attracts A.

Answer

  1. B attracts A.

Explanation:

Charge distribution or M, A & B

So, we can say that M attracts A, M attracts B, A attracts B and 'B' attracts A.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

It is not convenient to use a spherical Gaussian surface to find the electric field due to an electric dipole using Gauss’s theorem because

(a) Gauss’s law fails in this case

(b) This problem does not have spherical symmetry

(c) Coulomb’s law is more fundamental than Gauss’s law

(d) Spherical Gaussian surface will alter the dipole moment

The power rating of an electric motor which draws a current  of 3.75 amperes when operated at 200 V is about

(a) 1 H.P.

(b) 500 W

(c) 54 W  

(d) 750 H.P.

what is the potential difference between two points, if 2J of work must be done to move a 4 mC charge from one point to another is:

Young's experiment establishes that

(a) Light consists of waves

(b) Light consists of particles

(c) Light consists of neither particles nor waves

(d) Light consists of both particles and waves

When the number of turns in a coil is doubled without any change in the length of the coil, its self inductance becomes

(a) Four times

(b) Doubled

(c) Halved

(d) Unchanged

A moving coil galvanometer is based on the:
Among identical spheres A and B having charges −15C and −16C:
A particle moves with a constant velocity parallel to the X-axis. Its angular momentum with respect to the origin:
  1. Is zero.
  2. Remains constant.
  3. Goes on Increasing.
  4. Goes on decreasing.

Outside a nucleus           

(a) Neutron is stable

(b) Proton and neutron both are stable

(c) Neutron is unstable

(d) Neither neutron nor proton is stable

Two coils are at fixed locations. When coil 1 has no current and the current in coil 2 increases at the rate of 15.0As-1, the emf in coil 1 is 25mV. When coil 2 has no current and coil 1 has a current of 3.6A, the flux linkage in coil 2 is.