15 & 16
Forces & Energy
for Drawing Electric Field Lines
Electric field lines:
Point in the direction of the electric field vector at
Start at positive (+) charges or at infinity;
End at negative (-) charges or at infinity;
Are more dense where has
a greater magnitude. In particular, the number of lines entering
or leaving a charge is proportional to the magnitude of the charge;
Lines of the net field never cross.
The electric field lines due to two positive charges
of equal value.
electric field lines due to a positive and a negative charge of equal
value. Also known as a dipole.
to Electric Field Lines Part 2