Induction Effectsfrom Currents

• Switch closed (or opened)
  Þ current induced in coil b
  

• Steady state current in coil a
  Þ no current induced in coil b
  

• Conclusion:

A current is induced in a loop when:

• there is a change in magnetic field through it

• this can happen many different ways

• How can we quantify this?

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