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bixtya [17]
3 years ago
5

A 0.410 cm diameter plastic sphere, used in a static electricity demonstration, has a uniformly distributed 35.0 pC charge on it

s surface. What is the potential (in V) near its surface
Physics
1 answer:
Anuta_ua [19.1K]3 years ago
8 0

Answer:

The  potential is  V  =  153.659 \  V

Explanation:

From the question we are told that

     The diameter of the plastic sphere is  d = 0.410 \ cm  = 0.0041 \ m

      The magnitude of the charge is  q = 35.0 pC  = 35.0 *10^{-12} \ C

The radius of the plastic sphere is  mathematically evaluated as

          r = \frac{d}{2}

=>     r =  \frac{0.0041}{2}

       r =  0.00205 \  m

The  potential near the surface is mathematically represented as

         V  =  \frac{k * q}{r }

Where k is the Coulombs constant with value 9 *10^{9} \ kg\cdot m^3\cdot s^{-4} \cdot A^{-2}.

substituting values  

       V  =  \frac{9*10^9 *  35 *10^{-12}}{0.00205}

       V  =  153.659 \  V

       

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