Magnets and Magnetic Fields

Flashcards about Magnets and Magnetic Fields

Magnetic Field

The area around a magnet where its magnetic force is felt. Measured in Tesla (T). Symbol is (B).

Right Hand Rule #1

Point right thumb in direction of the current; fingers will curl in direction of magnetic field.

Magnetic Field Strength and Distance…..

Magnetic field strength varies with distance; further away, the weaker the field.

Right Hand Rule #2

Used to determine the direction of current when the field is known.

Right Hand Rule #3

An object in a magnetic field experiences a force if: 1. The object has a charge (electron, proton, ion). 2. The object moves at least a little bit perpendicular to the magnetic field lines. If parallel, force equals 0.

Magnetic Force on a Stationary Charge in a Magnetic Field equals ?

The magnetic force on a stationary charge within a magnetic field equals 0.

Magnetic Force on a Charge Moving in the Direction of the Magnetic Field equals ?

The magnetic force on a charge moving in the direction of the magnetic field equals 0.

Define what each finger represents in the right hand rule

Straight fingers indicate the direction of the magnetic field (B), the thumb indicates the direction of current (I), and the palm indicates the direction of force (F) for a positive charge. The direction of force is opposite for a negative charge.