Q.
The spatial distribution of the electric field due to charges (A, B) is shown in figure. Which one of the following statements is correct?
A) $A\ is + ve\ and\ B - ve,\ |A| > |B|$
B) $A\ is - ve\ and\ B + ve,\ |A| = |B|$
C) Both are +ve but $A > B$
D) Both are –ve but $A > B$
Explanation
(a) Electric lines of force usually start ($ie$, 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 of $B,\ i.e.,$ $|A\left| > |B \right|.$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.