Electric Dipole In Electric Field | MCQs Quiz

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-

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

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-

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.