Q. A uniform electric field pointing in positive $x$-direction exists in a region. Let A be the origin, B be the point on the $x$-axis at $x$=+1 cm and $C$ be the point on the $y$-axis at $y$=+1 cm. them the potentials at the points A, B and C satisfy the condition
A) $V_{A} < V_{B}$
B) $V_{A}{> V}_{B}$
C) $V_{A} < V_{C}$
D) $V_{A}{> V}_{C}$
Explanation
(b) As electric field is along positive $x$-axis and$\ E = - \frac{dV}{dx},\ $hence potential at$\ A\ $must be greater than that at $B\ ie,\ V_{A} > V_{B}$
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Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.