Question

The figure shows the electric lines of force emerging from a charged body. If the electric field at $A$ and $B$ are $E_{A}$ and $E_{B}$ respectively. If the distance between $A$ and $B$ is $r$ , then

• A. $E_{A}>E_{B}$
• B. $E_{A} < E_{B}$
• C. $E_{A}=\frac{E_{B}}{r}$
• D. $E_{A}=\frac{E_{B}}{r^{2}}$

Answer 1

Answer: (A)

In a strong electric field, field lines are crowded, and in a weak field, lines are sparse.
From the figure, we can say that the field at $A$ is stronger than the field at $B$ .
$\therefore $ $E_{A}>E_{B}$ .