electricity

Van de Graaff generator

A machine that produces an electrostatic charge used in various applications like x-ray machines and food sterilizers.

Electric conductor

Material allowing charged particles to move, e.g., copper.

Electric circuit

Closed pathway conducting electrons as electrical energy.

Like charges

Charges on an object are the same and repel each other.

Electric current

Flow of electric charge through a circuit, measured in electrons passing a point per second.

Alternating current

Electron flow direction reverses 50 times per second.

Ampere

Unit of current where 1000mA equals 1A.

Series circuit

Loads connected in a row, energy passes through one load at a time.

Voltage

Measure of electric potential difference between two points in a circuit.

Resistance

Measure of difficulty for charged particles to move in a circuit.

Light emitting diode

Diode emitting light of specific colors and allowing current flow in one direction.

Thermistor

Device changing resistance based on temperature.

Diode

Semiconductor device permitting current flow in one direction only.