Electronics

What is Electricity?

Electricity is electrons – the negative charge which orbits around the nucleus of an atom. Coulomb The Coulomb is the measure of the quantity of electrons. Just as litres or gallons is used to measure the quantity of a liquid, Coulombs is used to measure the quantity of electrons. A Coulomb contains approximately 6.24 × […]

Mathematics

What is a Function?

In mathematics: Unknown things are often written using x, y, or z. Known things are often written using a, b, or c. Functions are often written using f, g, or h. A function is an abstraction. Just as using a variable lets you talk about an unknown value in an equation: x2 + 2 = […]