Careful measurement of the electric field at the surface of a black box indicates…
PHYSICS · Multi-part · A Level · Physics · Fields and their consequences · Fields and their consequences
Problem
Careful measurement of the electric field at the surface of a black box indicates that the net outward flux through the surface of the box is 8.0×103 Nm2/C.
(1) What is the net charge inside the box?
(2) If the net outward flux through the surface of the box were zero, could you conclude that there were no charges inside the box? Why or Why not?