Electricity – Part 1

The Basics of Electricity

Electricity provides us with heat, light and power.

Where does it come from?

The utilities provide the general public with electricity, they generate it with water, burning fossil fuels, or from nuclear reactors. As, we move forward, we are seeing the requirement for more environmentally responsible way to generate electricity.

Electricity is sent from the power generation plants to grids across cities. Electricity can be alternating current (AC) or direct current (DC). In North America, we mostly use AC to power our home appliances.

Common Electrical Terms

This is where the math starts:

  • V = Voltage (Volts)
  • I = Current (Amps)
  • R = Resistance (Ohms)
  • P = Power (Watts)

You can use these in the following formulas:

  • V=IR
  • P=VI