Electromagnetic Induction (Lenz’s Law)

Lenz’s Law The induced emf (voltage) resulting from a changing magnetic flux produces a direction of current so that the induced current produces a magnetic field that opposes the original change in magnetic flux! Say What?

Lenz’s law X

Lenz’s law X

Lenz’s law X

Lenz’s law X

Lenz’s law X

Lenz’s law X

Mutual Induction Changing the current in one loop induces a change in another loop. Vs/Vp = Ns/Np = Ip/Is

Self Induction e = -L (DI/Dt) Only responds to Changing current Crossovers E = ½ L I2