Fig. shows an electric dipole. A point charge 4 μC is placed on the axial line of dipole at a large distance from the centre of dipole where electric field strength due to dipole is I 00 N/C. The dipole is also present in the electric field of 4 μC charge. Assuming that the charges that make the dipole are fixed relative to each other, but the dipole, as a whole, is free to move :

• A

  4 μC charge experiences a force $4 \mathrm{x} {10}^{-4} \mathrm{N}$ to the left; the dipole experiences no force but it experiences a torque

• B

  4 μC charge experiences a force $4 \mathrm{x} {10}^{-4} \mathrm{N}$ to the left; the dipole experiences a force $4 \mathrm{x} {10}^{-4} \mathrm{N}$ to the right but it experiences no torque

• C

  4 μC charge experiences a force $4 \mathrm{x} {10}^{-4} \mathrm{N}$ to the left; the dipole experiences a force $4 \mathrm{x} {10}^{-4} \mathrm{N}$ to the right, it also experiences a torque that will rotate it anticlockwise

• D

  4 μC charge experiences a force $4 \mathrm{x} {10}^{-4} \mathrm{N}$ to the left; the dipole experiences no force and no torque