R - Galileo and Einstein

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Field from a Uniform Line of Charge • The strategy is to find the field z from a bit dz of the wire, then do an integral over the whole wire. kdq kdz kd R tan kd dE 2 2 2 2 r r R sec R • For an infinite wire, the net field must be directly away from the wire, so multiply by cos <strong>and</strong> integrate over all z : E k R /2 /2 cosd 2k R dE • q dE in r Rsec P R from charge d Rtan z-axis dz z Rtan O
Electric Field from a Plane of Charge • It’s worth drawing the field lines to emphasize that the electric field from a uniformly charged plane is directly outward from the plane. • Charge density: • a Coulombs/m 2 E 2k 2 0
Page 1 and 2: More Electric Fields Physics 2415 L
Page 3 and 4: Superposition • The total electri
Page 5: Field from a Uniform Line of Charge
Page 9 and 10: Motion of an Electron Between Two O
Page 11 and 12: Field Lines for Two Equal Charges
Page 13 and 14: The Dipole Field • Notice that th
Page 15 and 16: Molecular Dipoles • Many molecule
Page 17 and 18: Potential Energy of Dipole in Elect
Page 19: Microwaving Water Dipoles • Recal

R - Galileo and Einstein

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