Lenz's Law from viewpoint of energy
Lenz’s Law : from viewpoint of energy v a b c d B
Magnetic flux(磁通量) I%=∫Bd 1Wb=1T*m2 Gauss's law for magnetic field ∮Bk=0
Magnetic flux（磁通量） Gauss’s law for magnetic field 1Wb=1T*m2
The Faraday's law of induction The magnitude of emf induced in the circuit is equal to the rate at which the magnetic flux through the circuit changes with time. dΦ dt dΦ If the coil has N turns: =-W
The Faraday’s law of induction The magnitude of emf induced in the circuit is equal to the rate at which the magnetic flux through the circuit changes with time. dt d If the coil has N turns: dt d N