AP EAMCET202120 Aug 2021Morning ShiftPhysicsElectrostaticsActual
Two charges 8 μ C each are placed at the comers A and B of an equilateral triangle of side 0 . 2 m in air. The electric potential at the third comer C is
Options
- A7 . 2 × 10 5   V
- B1 . 8 × 10 5   V
- C3 . 6 × 10 5   V
- D3 . 6 × 10 4   V
Correct answer
A. 7 . 2 × 10 5   V
Step-by-step solution
The net electric potential at a corner of an equilateral triangle due to both charges located at the other two corners of that equilateral triangle is V = k 8   μC 0 . 2   m + 8   μC 0 . 2   m V = 9 × 10 9   N   m 2   C - 2   × 16 × 10 - 6   C 0 . 2   m V = 7 . 2 × 10 5   volts