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10 cards from this deck
Opposes the change in flux that induced it
Creates field in opposite direction
Creates field in same direction
Required by energy conservation
Induced emf opposing supplied emf
I=emfsup−emfbackRI = \frac{\text{emf}_{sup} - \text{emf}_{back}}{R}I=Remfsup−emfback
Large (back emf is small)
Speed up → back emf up → current down
Loops of current induced in metal
Eddy currents create fields opposing motion
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