The process of generating electricity using a changing magnetic field.

The amount of magnetic field passing through a given area, calculated as $\Phi_B = B cdot A cdot cos(\theta)$.

A measure of how much a coil resists changes in current, measured in henries (H).

A measure of how quickly the current in an LR circuit reaches its steady-state value, calculated as $\tau = \frac{L}{R}$.

A changing magnetic field induces an electromotive force (EMF), with the magnitude of the EMF proportional to the rate of change of magnetic flux: $\mathcal{E} = -N \frac{d\Phi_B}{dt}$.

The direction of the induced current opposes the change in magnetic flux that caused it.

Voltage generated by a changing magnetic field.

The amount of magnetic field passing through an area; $\Phi_B = B cdot A cdot cos(\theta)$.

A measure of how much a coil resists changes in current, measured in henries (H).

The time it takes for the current in an LR circuit to reach approximately 63.2% of its maximum value; <math-inline>\tau = \frac{L}{R}.

They tie together electricity and magnetism, explaining how electromagnetic waves propagate and are crucial for designing electrical devices.

A changing magnetic field induces an electromotive force (EMF).

The direction of the induced current opposes the change in magnetic flux that caused it.

Faraday's Law: Quantifies the induced EMF by a changing magnetic flux. | Lenz's Law: Determines the direction of the induced current, opposing the change in flux.

Electric Fields: Relates electric flux to enclosed charge, indicating electric fields originate from charges. | Magnetic Fields: States magnetic monopoles don't exist, so magnetic field lines always form closed loops.

Generators: Convert mechanical energy to electrical energy using a changing magnetic field. | Transformers: Change voltage levels in AC circuits using changing magnetic flux between coils.