Question

An electric dipole is placed at an angle of $30^\circ$ in an electric field of intensity $2 \times 10^5$ N/C. It experiences a torque of $0.03$ Nm. If the dipole length is 2 cm, find the charge on the dipole.

• A. $1.5 \times 10^{-5}$ C
• B. $2.0 \times 10^{-5}$ C
• C. $2.5 \times 10^{-5}$ C
• D. $3.0 \times 10^{-5}$ C

Hint:

Quick Tip:
For dipole problems, use: \[ \tau = pE\sin\theta \quad \text{and} \quad p = qd \]

Answer 1

The Correct Option is A