A positive point charge Q = 5 nC is located at point A. What is the electric pot

Question

A positive point charge Q = 5 nC is located at point A. What is the electric potential at point B? Rank in order, from the largest to the smallest, the electric potentials V_1 to V_6 at points 1 to 6. Explain this ranking of potentials and show jour work. The figure below shows two points inside a capacitor Let V = 0 foil at the negative plate that corresponds to the charge density sigma = 20 mu C/cm^2, and the charge density at the positive plate is sigma= 20 mu C/cm^2. The permittivity of free space is = 8.85 Timts 10^-12 m^-3 kg^-1 s^-1 A^2. What is the electric field E_1 and E_2 respectively at the points I and 2?

Explanation / Answer

1.

Electric Potential due to point charge is

V=KQ/r

So

VAB = (9*109)(5*10-9)/1

VAB=45 Volts

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2.

Since Electric potential is given by

V=KQ/R

as R increase ,V decreases ,so

V2=V3 > V1=V4>V5=V6

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