physics d.2-d.4, b.5

Coulomb's Law

The electric force between two point charges is directly proportional to the product of the charges and inversely proportional to the square of the distance between them, and directed along the line joining the two charges.

Electric Field

A region of space where an electric charge experiences an electric force.

Electric Field Strength

The force per unit charge acting on a small positive test charge.

Magnetic Field

A region of space where a bar magnet would experience an electric force.

Electrical Potential Energy

The work that needs to be done by an external agent to bring charges from an infinite distance to their current position.

Electrical Potential

The work done per unit charge in bringing a small positive test charge from infinity to a point in an electric field.

Lenz's Law

Induced emf will be such that it opposes the change in magnetic flux, consistent with energy conservation.

Faraday's Law of Induction

The size of the induced emf is proportional to the rate of change of flux linkage.