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Phys 4, Section 2
Jan 18, 2002
Electric Field
, where qo is a small test charge moved around in space.
For the electric field E around a point charge q, get
Another form of this equation uses a different constant
 defined
as 
Field
Lines
Field
lines originate on positive charges and terminate on negative charges.
A field line represents the path through space that a small positive test
charge would follow if placed in that space.
The electric field E at a point is tangent to the field line at that
point.
Last modified on January 23, 2002
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