Question

For the given electric field lines configuration of two charges, the value of the angle $\theta$ is

• A. ${15}^{\circ }$
• B. ${30}^{\circ }$
• C. ${45}^{\circ }$
• D. ${60}^{\circ }$

Answer 1

The correct option is B ${30}^{\circ }$

We know that, for two charges, electric lines of force are always symmetric about line joining of two charges.

Therefore, by symmetry, $\theta ={30}^{\circ }$

So, option $\left(b\right)$ is correct.