Magnetism and electromagnetism

Front

What is magnetism?

Back

Magnetism is a physical phenomenon produced by the motion of electric charge, which results in attractive and repulsive forces between objects.

Front

What is an electromagnet?

Back

An electromagnet is a type of magnet in which the magnetic field is produced by an electric current.

Front

What is the right hand grip rule?

Back

The right hand grip rule is a method used to determine the direction of the magnetic field around a current-carrying conductor. If you grip the conductor with your right hand, with your thumb pointing in the direction of the current, your fingers will curl in the direction of the magnetic field.

Front

What is the magnetic field?

Back

The magnetic field is the area around a magnet where magnetic forces can be detected.

Front

What is the role of the galvanometer in an electric circuit?

Back

A galvanometer is an instrument used to detect and measure small electric currents by the deflection of a needle.

Front

What is electromagnetism?

Back

Electromagnetism is the branch of physics that deals with the interaction between electric charges and magnetic fields.

Front

What happens when the number of turns in a coil is increased?

Back

Increasing the number of turns in a coil enhances the magnetic field strength produced by the coil when an electric current passes through it.

Front

What is Fleming's left hand rule?

Back

Fleming's left hand rule is a mnemonic used to determine the direction of force experienced by a current-carrying conductor in a magnetic field.

Front

What is the principle behind electric motors?

Back

Electric motors operate on the principle of electromagnetism, where a current-carrying coil experiences a force in a magnetic field, causing it to rotate.

Front

What is magnetic force?

Back

Magnetic force is the attraction or repulsion that arises between electrically charged particles due to their motion.