Two charges 8   μ C each are placed at the comers A and B of an equilateral triangle of side 0 . 2…

Two charges 8 μC 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
  1. 7.2×105 V
  2. 1.8×105 V
  3. 3.6×105 V
  4. 3.6×104 V

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=k8 μC0.2 m+8 μC0.2 mV=9×109 N m2 C-2 ×16×10-6 C0.2 mV=7.2×105 volts

Asked in: AP EAMCET 2021 (20 Aug Shift 1)

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