STANDARDPhysics-Electrostatics
STANDARD Physics Electric Forces MCQ Question
Type: MCQ-conceptual-Medium
Three charges of equal magnitude q are placed at the vertices of an equilateral triangle of side l. The force on a charge Q placed at the centroid of the triangle is
A
3Qq/(4πε₀l²)
B
2Qq/(4πε₀l²)
C
Qq/(2πε₀l²)
D
zero
Correct Answer
Option D
Detailed Explanation
The forces due to each charge q on the charge Q at the centroid are equal in magnitude and symmetrically arranged, resulting in a net force of zero.
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