Electromagnetic Induction

when changing magnetic fields produce electric fields

Motion Induced EMF

Electromagnetic Induction

Induced EMF

 Electromagnetic Induction

      Motion induced EMF

           Introduction

Consider a neutral metal block that is moving into a region where there is a uniform magnetic field

 Electromagnetic Induction

      Motion induced EMF

           Introduction

Recall

\text{experiences a Magnetic Force}
\text{a charge}
\text{moving with velocity}
\text{in a magnetic field}
q
\vec{v}
\vec{B}
\vec{F}_B=q\ \vec{v}\ \times \vec{B}

 Electromagnetic Induction

      Motion induced EMF

           Introduction

Consider a neutral metal block that is moving into a region where there is a uniform magnetic field

 Electromagnetic Induction

      Motion induced EMF

           Introduction

 Electromagnetic Induction

      Motion induced EMF

           Introduction

 Electromagnetic Induction

      Motion induced EMF

           Introduction

at Equilibrium:

F_E=F_B
qE=qvB\sin\theta
E=vB\sin\theta

 Electromagnetic Induction

      Motion induced EMF

           Introduction

The electric potential difference across the plate:

=vB l\sin\theta
\Delta V=\int\vec{E}\cdot d\vec{s}
= E \ l

at Equilibrium:

F_E=F_B
qE=qvB\sin\theta
E=vB\sin\theta

Motional EMF

Motion Induced Current

Electromagnetic Induction

Induced EMF

Magnetic Flux

Electromagnetic Induction

Induced EMF

Faraday's Law

Electromagnetic Induction

Induced EMF

Lenz's Law

Electromagnetic Induction

Induced EMF

Inductance

Electromagnetic Induction

Induced EMF