Electromagnetism Flashcard

Front

What is the Law of Conservation of Charge?

Back

The Law of Conservation of Charge states that a charge can be transferred from one object to another, but it cannot be created or destroyed.

Front

What is an Electromagnet?

Back

An Electromagnet is a temporary magnet created when there is a current in a wire coil.

Front

What is a Solenoid?

Back

A Solenoid is a cylindrical coil of wire that produces a magnetic field when an electrical current passes through it.

Front

What are Magnetic Poles?

Back

Magnetic Poles are regions on a magnet where the magnetic force exerted is strongest; like poles repel and opposite poles attract.

Front

What is Electromagnetism?

Back

Electromagnetism is the interaction between electric charges and magnets.

Front

What is a Magnetic Field?

Back

A Magnetic Field is the area around a magnet where magnetic forces can be detected.

Front

What is the difference between a permanent magnet and an electromagnet?

Back

A permanent magnet maintains its magnetic properties without the need for an electric current, while an electromagnet requires an electric current to generate a magnetic field.

Front

What is the formula for calculating the magnetic force on a charged particle?

Back

The magnetic force (F) on a charged particle can be calculated using the formula F = q(v × B), where q is the charge, v is the velocity of the particle, and B is the magnetic field.

Front

What is the right-hand rule in electromagnetism?

Back

The right-hand rule is a mnemonic used to determine the direction of the magnetic field around a current-carrying wire; if you point your thumb in the direction of the current, your fingers curl in the direction of the magnetic field.

Front

What is Faraday's Law of Electromagnetic Induction?

Back

Faraday's Law states that a change in magnetic field within a closed loop induces an electromotive force (EMF) in the wire.