A mass has a charge of q = 3e, where e is the charge on an electron. (a) Determine the electric potential (in V) due to the charge at a distance r = 0.220 cm from the charge. (b) Determine the electric potential difference (in V) between a point that is 3r away and this point, that is V(3r) - V(r). (c) Determine the electric potential difference (in V) between a point that is - away and this point, that is - V(r). V (d) How would the answers change if the electrons are replaced by protons? O The sign of answer (a) would change. O The sign of answer (b) would change. O The sign of answer (c) would change. O The sign of all answers would change. O All answers would remain the same.

At a certain distance from a charged particle, the magnitude of the electric field is 500 V/m and the electric potential is 3.00 kV. (a) What is the distance to the particle? (b) What is the magnitude of the charge?

An electric potential exists in a region of space such that V = 8x4 2y2 + 9z3 and V is in units of volts, when x, y, and z are in meters. a. Find an expression for the electric field as a function of position. b. What is the electric field at (2.0 m, 4.5 m, 2.0 m)?

A filament running along the x axis from the origin to x = 80.0 cm carries electric charge with uniform density. At the point P with coordinates (x = 80.0 cm, y = 80.0 cm), this filament creates electric potential 100 V. Now we add another filament along the y axis, running from the origin to y = 80.0 cm. carrying the same amount of charge with the same uniform density. At the same point P, is the electric potential created by the pair of filaments (a) greater than 200 V, (b) 200 V, (c) 100 V, (d) between 0 and 200 V, or (e) 0?