Two identical metal balls of radii 2.50 cm are at a center to center distance of
1.00 m from each other. Each ball is
charged so that a point at the surface of
the first ball has an electric potential of
+1.20 x 103 V and a point at the surface
of the other ball has an electric
potential of -1.20 x 103 V. What is the total charge on each ball?

+1.33 × C and -1.33 × C respectively.

Explanation:

Electric potential (V) is the work done in moving a unit positive charge from infinity to a reference point within an electric field. It is measured in volts.

     V = ............. 1

where: k is a constant = 9 × N, q is the charge and r is the distance between the charges.

From equation 1,

   q = ............... 2

The charge on each ball can be determined as;

given that; V = 1.2 × , k = 9 × N and r = 1.00 m.

From equation 2,

  q =

     = 1.33 × C

Thus, the charge on the first ball is +1.33 × C, while the charge on the second ball is -1.33 × C.

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yup its correct its: c) b b