Magnetism/Electromagnetism Review

Front

What is the direction of the force on a charged particle moving in a magnetic field?

Back

The force on a charged particle moving in a magnetic field is perpendicular to both the velocity of the particle and the magnetic field direction, determined by the right-hand rule.

Front

What is the right-hand rule in magnetism?

Back

The right-hand rule states that if you point your thumb in the direction of the current (or velocity of a positive charge) and your fingers in the direction of the magnetic field, your palm will point in the direction of the magnetic force.

Front

What are magnetic poles?

Back

Magnetic poles are the regions of a magnet where the magnetic force is strongest. Every magnet has a north pole and a south pole.

Front

What is the principle of electromagnetic induction?

Back

Electromagnetic induction is the process by which a changing magnetic field induces an electromotive force (EMF) in a conductor.

Front

What is a magnetic domain?

Back

A magnetic domain is a region within a magnetic material where the magnetic moments of atoms are aligned in the same direction.

Front

What conditions are necessary for a material to be magnetic?

Back

A material must have areas of domains all aligned in the same direction to exhibit magnetism.

Front

What is a transformer?

Back

A transformer is a device that transfers electrical energy between two or more circuits through electromagnetic induction, primarily used to change voltage levels.

Front

What does a transformer actually transform?

Back

A transformer transforms voltage.

Front

What happens to a loop of wire moving through a magnetic field?

Back

When a loop of wire moves through a magnetic field, an electromotive force (EMF) is induced, causing a current to flow in the loop.

Front

What is the effect of a magnetic field on a current-carrying conductor?

Back

A current-carrying conductor placed in a magnetic field experiences a force, which can cause it to move.