Electricity and Magnetism

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Presentation transcript:

Electricity and Magnetism Physics 208 Dr. Tatiana Erukhimova Lecture 36

The force on a charge q moving with a velocity The magnitude of the force

left-hand rule right-hand rule

Small peace of wire

Ampere’s Law The field produced by an infinite wire

Biot-Savart Law Infinitesimally small element of a current carrying wire produces an infinitesimally small magnetic field is called permeability of free space (Also called Ampere’s principle)

Faraday’s Law of Induction The induced EMF in a closed loop equals the negative of the time rate of change of magnetic flux through the loop

Third exam Tuesday, April 15 105, 107,109 Heldenfels 7 pm – 8 pm

Help Session: When: tonight at 7:30 pm