Terms and Formulae
Terms
Second Right Hand Rule
-
Rule that gives the direction of the magnetic field about a current-carrying
wire
Solenoid
-
A long, helical coil of wires
Formulae
|
Formula for the magnetic field around a straight wire
|
B =
|
|
Equation for the force, per unit charge, between two parallel current carrying
wires
|
=
|
|
Formula for the contribution by a small length of wire, dl, to the magnetic
field at a given point
|
dB =
|
|
Equation for the strength of the magnetic field on the axis of a ring
|
B =
|
|
Equation for the strength of the magnetic field at the center of a ring
|
B =
|
|
Formula for the magnetic field strength on the axis of a solenoid
|
B = (cosθ1 - cosθ2)
|
|
Formula for the magnetic field strength inside an infinite solenoid
|
B =
|