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PR5:<br />

Integrating B around the loop shown gives us:<br />

0% 1. a positive number<br />

0%<br />

PR5: Ampere's Law<br />

Integrating B around the loop shown gives us:<br />

0% 1. a positive number<br />

0% r 2) a' negative number ~<br />

0% ~· · · zero ~<br />

Faraday's Law of Induction<br />

d -<br />

& = E.dS=- dcD<br />

B<br />

dt<br />

d<br />

Le nz's Law:<br />

Moving bar,<br />

I entering field<br />

= --(BAcosB)<br />

dt t t<br />

Ramp B Rotate area<br />

in fleld<br />

Induced EMF is in direction that opposes the<br />

change in flux that caused it<br />

Class 31 2

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