A charge of 7.3 nC is placed uniformly on a square sheet of nonconducting material, with...
A charge of 7.3 nC is placed uniformly on a square sheet of nonconducting material, with side 19.0 cm, that lies in a horizontal plane.
1. What is the surface charge density?
2. What is the magnitude of the electric field just above the center of the sheet?
The same charge is placed on a horizontal square conducting slab of side 19.0 cm and vertical thickness 1.0 mm. Assume that the charge distributes itself uniformly on the large square surfaces.
3. What is the surface charge density?
4. What is the magnitude of the electric field just below the center of the slab?
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