Electric Charges & Fields | Electric Dipole In Uniform Electric Field All the best! 1. An electric dipole is in unstable equilibrium in a uniform electric field. The angle between its electric dipole moment and electric field is- 0° 90° 180° 120° None 2. The net torque acting on dipole placed in uniform electric field may be- zero pE/2 pE All of these None 3. An electric dipole is placed at an angle of 30° with an electric field intensity 2 x 105 NC-1. It experiences a torque equal to 4 Nm. The charge on the dipole, if the dipole length is 2 cm is- 8 mC 2 mC 5 mC 7 μC None 4. An electric dipole of dipole moment 2 x 10-8 C m in a uniform electric field experiences a maximum torque of 6 x 10-4 Nm. The magnitude of electric field is- (A) 2.2 x 103 Vm-1 (B) 1.2 x 104 Vm-1 (C) 3 x 104 Vm-1 (D) 4.2 x 103 Vm-1 Option (A) Option (B) Option (C) Option (D) None 5. A charge q is placed at (1, 2, 1) and another charge -q is placed at (0, 1, 0) such that they form an electric dipole. There exists a uniform electric field E = 2î. The torque experienced by the dipole is- 2√2q Nm 2q Nm 4√2q Nm √2q Nm None 6. Assertion- In a uniform electric field, an electric dipole will have only translatory motion and no rotatory motion.Reason- In a uniform electric field, an electric dipole experiences a force as well as a torque. Both Assertion and Reason are correct and Reason is the correct explanation of Assertion Both Assertion and Reason are correct but Reason is not the correct explanation of Assertion Assertion is true and Reason is false Both Assertion and Reason are false None 1 out of 6 Time's up
