A cube of edge has a point charge at its centre and a point charge located exactly at…
PHYSICS · Subjective · AP · Physics C: Electricity and Magnetism · Electric Charges Fields and Gauss's Law · Electric Charges Fields and Gauss's Law
Problem
A cube of edge 1.0m has a point charge −1.0μC at its centre and a point charge +4.0μC located exactly at one of its corners. A third charge of +2.0μC is located 0.5m outside the cube.
(i) Find the net charge enclosed by the cube.
(ii) Calculate the total electric flux through the entire surface of the cube.
(iii) Assuming symmetry, find the electric flux through each of the three faces that meet at the corner containing the +4.0μC charge.