Question

The spatial distribution of the electric field due to two charges $(A, B)$ is shown in figure. Which one of the following statements is correct?

• A. $A$ is +ve and $B$ -ve and $|A|>|B|$
• B. $A$ is -ve and $B$ +ve; $|A|=|B|$
• C. both are +ve but $A>B$
• D. both are -ve but $A>B$

Answer 1

Answer: (A)

$A$ is +ve and $B$ -ve and $|A|>|B|$

Answer 2

Electric lines of force usually start (i.e., diverge out) from positive charge and end (i.e., converge) on negative charge or extends to infinity. Thus, $A$ is positive charge and $B$ is negative charge. Also density of lines at $A$ is more than that at $B$, i.e., $|A|>|B|$.