A small spherical pith ball of radius 0.50 cm is painted with a silver paint and then −10 μC of charge is placed on it. The charged pith ball is put at the center of a gold spherical shell of inner radius 2.0 cm and outer radius 2.2 cm. (a) Find the electric potential of the gold shell with respect to zero potential at infinity. (b) How much charge should you put on the gold shell if you want to make its potential 100 V?

Two conducting concentric spherical shells have radii a = 0.165 m and b = 0.24 m.  Part (a) If the charge in the inner sphere is +Q = 3 µC, the outer sphere -Q = -3 µC, calculate the electric potential difference△V between the outside and the inside conductors in V.

Problem 4: Charge q1=4 nC is located at the coordinate system origin, while charge 92=0.51 nC is located at (a,0), where a = 1.1 m. The point P has coordinates (a, b), YA where b=0.65 m. A third charge q3= 18.5 nC will be placed later. 9₁ Part (a) Find the electric potential Vp at point P. in volts. Assume the potential is zero at infinity. Numeric: A numeric value is expected and not an expression. Vp= Part (b) How much work W, in joules, would you have to do to bring the third charge, q3, from very far away to the point P? Numeric: A numeric value is expected and not an expression. W= Part (e) What is the total potential energy U, in joules, of the final configuration of three charges? Numeric: A numeric value is expected and not an expression. P (a,b) 92 1x Otheexpertta.com

Charges of +2.60 nC and -1.00 nC are located at opposite corners, A and C, respectively, of a square which is p = 6.70 m on a side. What is the electric potential at a third corner, B, of the square (where there is no charge)? A pm D pm B C