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