Two identical charges q = (1/9.0) × 10−9 C are shown in the figure below. Find...

Question

Question

Two identical charges q = (1/9.0) × 10⁻⁹ C are shown in the figure below. Find the potential at P.

(Take r = 1.39 m and θ = 44°.)

Answer 1

Answer #1

Electric potential ( V ) due to a charge Q at a distance r is given by:

kQ V =

where k = 9*10⁹ Nm²/C²

Also electric potential is a scalar quantity and can be algebraically added irrespective of the angles.

So, at point P

kq V

2kq V =

2 9 10 10 V 9 1.39

V = 1.439 volt

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Answer 2

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