Intro to Electricity

Front

What is electricity?

Back

Electricity is the flow of electric charge, typically carried by electrons, and is a form of energy that can be used to power devices.

Front

What is an electric current?

Back

An electric current is the flow of electric charge in a circuit, measured in amperes (A).

Front

What is voltage?

Back

Voltage, or electric potential difference, is the measure of the energy per unit charge available to drive the flow of current in a circuit, measured in volts (V).

Front

What is resistance?

Back

Resistance is the opposition to the flow of electric current, measured in ohms (Ω).

Front

What is Ohm's Law?

Back

Ohm's Law states that the current (I) through a conductor between two points is directly proportional to the voltage (V) across the two points and inversely proportional to the resistance (R): V = I × R.

Front

What is alternating current (AC)?

Back

Alternating current (AC) is an electric current that reverses direction periodically, commonly used in power supplies.

Front

What is direct current (DC)?

Back

Direct current (DC) is an electric current that flows in one direction only, commonly used in batteries.

Front

What is a circuit?

Back

A circuit is a closed loop that allows electric current to flow, consisting of a power source, conductors, and a load.

Front

What is a power plant?

Back

A power plant is a facility that generates electricity by converting various forms of energy, such as fossil fuels, nuclear, or renewable sources.

Front

What is electromagnetic radiation?

Back

Electromagnetic radiation is energy that travels through space in the form of waves, including visible light, radio waves, and X-rays.