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Magnetism
Theory based on magnetism.
23
Physics
Undergraduate 2
02/26/2015

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Term
Magnetic North
Definition
Located in south pacific ocean
Term
Magnetic South
Definition
Located in Hudson Bay, Canada
Term
Van Allen Belts
Definition
Radiation trapped inside the earth's magnetic field.
Term
Magnetic Pole flips
Definition
Happen every 250,000 years.
Term
Gauss' Law for Magnetism
Definition
There is no such thing as a magnetic monopole.
Term
SSB*dA = 0
Definition
Gauss' Law for Magnetism
Term
Maxwell-Ampere's Law
Definition
Moving electric charge or changing electric flux produces a magnetic field.
Term
SSB*ds = UoI+UoEodIE/dt
Definition
Maxwell-Ampere's Law
Term
Faraday's Law
Definition
Changing magnetic flux produces an electric field.
Term
SSE*ds = -dIb/dt
Definition
Faraday's Law
Term
Gauss' Law for Electric Charge
Definition
Electric charge produces electric field.
Term
SSE*dA = q/Eo
Definition
Gauss' Law for Electric Charge
Term
Ferromagnetism
Definition
Strong, permanent dipole.
Term
Paramagnetism
Definition
Weak, partial dipole.
Term
Diamagnetism
Definition
No permanent dipole, random alignment.
Term
Lorentz Force
Definition
Acts perpendicular to magnetic field, only present when electric charge is moving, does no work on object, changes direction not magnitude.
Term
Lenz' Law
Definition
Seeks to restore itself or oppose change to magnetic flux.
Term
Inductor
Definition
Store energy in the form of a current.
Term
I(max) is reached in how many time constants?
Definition
10
Term
One time constant of I(max) is what percentage of max?
Definition
63.2%
Term
Phi > 0
Definition
Voltage leads current
Term
Phi = 0
Definition
Voltage and current in phase.
Term
Phi < 0
Definition
Current leads voltage
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