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Physics 1425: General Physics I - Galileo and Einstein

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Picturing the Fields…<br />

• So let’s look a<br />

• .<br />

<br />

E d d / dt BdA<br />

• Take a rectangular contour,<br />

two sides parallel to the<br />

electric field, one side<br />

beyond v: the integral gives<br />

. EL = vLB.<br />

• (we’re not worrying about<br />

sign—these are field<br />

amplitudes.)<br />

<br />

<br />

<br />

x<br />

Electric field<br />

vt<br />

y<br />

z<br />

L<br />

Magnetic field

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