Electricity and magnetism

Electrostatics (part 1): Introduction to charge and Coulomb's law

Introduction to Charge and Coulomb's Law (video from May 2008 that I forgot to upload)

Electrostatics (part 2)

Electric Fields

Proof (advanced): Field from infinite plate (part 1)

Electric field generated by a uniformly charged, infinite plate

Proof (advanced): Field from infinite plate (part 2)

We see that the infinite, uniformly charged plate generates a constant electric field (independent of the height above the plate)

Electric potential energy

Introduction to electric potential

Electric potential energy (part 2-- involves calculus)

Electric potential energy difference in a varying field

Voltage

Difference between electrical potential (voltage) and electrical potential energy

Capacitance

Introduction to the capacitance of a two place capacitor.

Circuits (part 1)

Introduction to electricity, circuits, current and resistance

Circuits (part 2)

Resistors in series

Circuits (part 3)

Resistors in parallel

Circuits (part 4)

A hairy resistance problem

Cross product 1

Introduction to the cross product

Cross product 2

A little more intuition on the cross product.

Cross product and torque

The cross product and the direction of torque.

Introduction to magnetism

An introduction to magnetism

Magnetism 2

Magnetic fields and their effects on moving electrical charges

Magnetism 3

Whats happens when a speeding proton goes through a magnetic field

Magnetism 4

Part 2 of the proton through a magnetic field problem

Magnetism 5

Magnetic force on a wire carrying current.

Magnetism 6: Magnetic field due to current

See how a wire carrying a current creates a magnetic field.

Magnetism 7

The magnetic force that two current-carrying wires exert on each other.

Magnetism 8

More on the forces exerted by 2 current carrying wires on each other.

Magnetism 9: Electric motors

Using a magnetic field to exert torque on a rotating circuit.

Magnetism 10: Electric motors

Why the circuit will keep flipping over.

Magnetism 11: Electric motors

Using a commutator to solve the flipping problem and create an electric motor.

Magnetism 12: Induced current in a wire

Induced current and EMF in a moving wire from a magnetic field.

The dot product

Introduction to the vector dot product.

Dot vs. cross product

Understanding the differences between the dot and cross products

Calculating dot and cross products with unit vector notation

Calculating the dot and cross products when vectors are presented in their x, y, and z (or i,j, and k) components.