An electric motor is a device that converts electrical energy into mechanical energy. It works by using electromagnetism to create a rotating force.

An electric generator works based on Faraday's law of electromagnetic induction, which states that a changing magnetic field induces an electromotive force (EMF) in a conductor.

A transformer is an electrical device that transfers energy from one circuit to another through electromagnetic induction. Its primary function is to change the voltage of an AC.

An ammeter is a device used to measure the strength of an electric current. It is connected in series with the circuit to measure the current flowing through it.

A fuse is a safety device used in an electrical circuit to protect it from overcurrent. It contains a wire that melts and breaks the circuit when the current exceeds a safe level.

The attraction or repulsion between magnets is caused by the magnetic force, which is one of the fundamental forces of nature.

The SI unit of magnetic flux density is Tesla (T), named after the Serbian-American inventor Nikola Tesla.

Radio waves have the longest wavelength among the electromagnetic waves, ranging from a few centimeters to thousands of kilometers.

MRI machines utilize the principle of nuclear magnetic resonance, where certain atomic nuclei, such as hydrogen, align with an external magnetic field and emit radio waves when exposed to radiofrequency pulses.

The photovoltaic effect is the process by which certain materials generate an electrical current when exposed to light. This phenomenon is utilized in solar cells to convert sunlight into electricity.

An inductor is a passive electrical component that stores electrical energy in a magnetic field when current flows through it.

Gamma rays have the highest frequency and energy among the electromagnetic waves, typically originating from radioactive decay or nuclear reactions.

Microwave ovens utilize microwave heating, where high-frequency microwaves penetrate food and cause water molecules to vibrate rapidly, generating heat.

The aurora borealis and aurora australis are caused by geomagnetic storms, where charged particles from the sun interact with the Earth's magnetic field and collide with atoms and molecules in the atmosphere, causing them to emit light.

A capacitor is a passive electrical component that stores electrical energy in an electric field when voltage is applied across it.