Question

In an isosceles right angled triangle ABC, the equal sides AB and AC are 10 cm. Charges \(+5\mu C\), \(+20\mu C\) and \(+20\mu C\) are placed at A, B and C respectively. A charge \(+2\mu C\) is placed at the midpoint of BC. The net electrostatic force on it is:

• A. \(24N\)
• B. \(9N\)
• C. \(36N\)
• D. \(18N\)

Hint:

At the midpoint of the hypotenuse of a right triangle, distances from all three vertices are equal.

Answer 1

The Correct Option is D