Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Electrostatic Potential and Capacitance

Question:

Two point charges $q_1=2 \mu C$ and $q_2=-2 \mu C$ are placed 20 cm apart from each other. Point 'a' is 5 cm away from q, on the line joining $q_1$ and $q_2$ on the side opposite to $q_2$. Point 'b' is 5 cm away from $q_2$, on the line joining $q_1$ and $q_2$, opposite to $q_1$. Point 'c' is at a perpendicular distance of 10 cm from the centre point D of the line joining $q_1$ and $q_2$. Identify the correct statement depicting the situation.

Options:

Point C and D are equipotential

Potential at point a, $V_a<V_b$, potential at point b

Potential at point a, $V_a<V_c$, potential at point c

Potential at point D, $V_D>V_b$ potential at point b

Correct Answer:

Point C and D are equipotential

Explanation:

The correct answer is Option (1) → Point C and D are equipotential

Point C and D are equidistant from $q_1$ and $q_2$. So net potential on C and D is zero.

Hence option (1) is correct.

*Option (4) is not clear (There must be an error in option 4).