Question

An electric dipole consists of two charges -q and +q separated by a distance 2a. The dipole is along x-axis and its centre is at the origin. Then (considering k $\frac{1}{4}πε_0$)

• A. Dipole moment of the system is zero
• B. The electric potential at the point (x, 0) is $\frac{2qa}{x^2-a^2}$
• C. Electric potential at any point (x, 0) far away from the dipole is k $\frac{2qa}{x^2}$
• D. Electric potential is non-zero at (0, a).

Answer 1

Answer: (B), (C)

The electric potential at the point (x, 0) is $\frac{2qa}{x^2-a^2}$

Answer 2

The correct option is: B and C