A 0.290 cm diameter plastic sphere, used in a static electricity demonstration, has a uniformly distributed 30.0 pC charge on its surface. What is the potential (in V) near its surface?

Therefore,

The potential (in V) near its surface is 186.13 Volt.

Explanation:

Given:

Diameter of sphere,

d= 0.29 cm

Charge ,

To Find:

Electric potential , V = ?

Solution:

Electric Potential at point surface is given as,

Where,  

V= Electric potential,  

ε0 = permeability free space = 8.85 × 10–12 F/m

Q = Charge  

r = Radius  

Substituting the values we get

Therefore,

The potential (in V) near its surface is 186.13 Volt.

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