Copyright © Michael Richmond.
This work is licensed under a Creative Commons License.
The Electric fields
This lecture is based on HRW, Sections 23:1-4
- One way to express the behavior of electric charges is by
their interaction with other charges, directly;
another way is by their interaction with the electric field
- The electric field is created by charges, and is a vector field
- One can represent the electric field by means of arrows, or by means
of continuous lines
- lines originate on positive charges
- lines terminate on negative charges
- lines never cross
- the density of lines indicates the strength of the electric field
- The principle of superposition states that the electric field due
to a group of particles is simply the vector sum of the electric
field due to each particle considered individually
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Copyright © Michael Richmond.
This work is licensed under a Creative Commons License.