Electric and Magnetic Fields, Electromagnetic Induction, and Gravitational Fields

This set of flashcards covers key concepts in electric and magnetic fields, electromagnetic induction, and gravitational fields as outlined in the lecture notes.

Electric Field

A region in which a charged object experiences a force.

Electric Field Lines

Imaginary lines that represent the direction of the electric field; they indicate the path a positive charge would take.

Electric Potential Energy

The work done to move a charge within an electric field; stored energy associated with the position of a charge.

Electric Field Strength (E)

The force experienced per unit charge; measured in newtons per coulomb (N/C).

Voltage (Electric Potential Difference)

The potential energy per unit charge; measured in volts (V).

Gravitational Field

A region around a mass where another mass experiences a force of attraction.

Magnetic Field (B)

A field around a magnet or current-carrying conductor where magnetic forces can be observed.

Lenz’s Law

States that an induced current will flow in a direction such that its magnetic field opposes the change in magnetic flux that produced it.

Inductance (L)

A measure of the ability of a coil to store magnetic energy; unit is Henry (H).

Magnetic Flux (Φ)

The total magnetic field passing through a given area; measured in webers (Wb).