This document discusses how to calculate the electric field due to continuous distributions of charge. It explains that charges can be modeled as continuously distributed along a line, over a surface, or throughout a volume. The electric field is then calculated through an integral performed over the entire charge distribution.

1. Electric field due to
continuous charge
distributions

2. Charges on surface of system are located
very close together and can be assumed to
have continuous distribution of charges.
In a system of closely spaced charges
charge could be continuously distributed
along
Some line
Over a surface
Throughout a volume

3. A

4. This integral is done over the entire
charge distribution.

5. Line Charge

6. Surface Charge

7. Volume Charge