PHYS 2326

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PHYS 2326 Electromagnetism and Waves Dr. Phillip
C. Anderson
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We will be studying the laws of electromagnetism
from a very advantageous position as an already
existing great and consistent picture we wont
be deducing these laws but rather applying them
in simple situations. Remember however that it is
a great body of experimental evidence on the
basis of which and to rationalize which this
picture was developed!
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Electric and magnetic forces (just as gravity)
are fundamental forces of nature Electric charge
(just as mass) is a fundamental characteristic of
particles
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Electric charge and structure of matter
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Conductors are materials in which charges can
move freely will always move while E is
present In insulators charges cannot move freely
(but can be displaced with respect to each other)
Charging by induction
Grounding charges can flow to the Earth
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Coulombs Law
Force produced by point charge 1 on point
charge 2