Important Concepts

  • The amount of work electricity can do is described in terms of amperage and voltage.
  • Amperage (A) describes the quantity of charge carriers flowing in an electric current.
  • Current is a colloquial term that means amperage.
  • Amp hours (Ah) describe the quantity of available charge or charge used.
  • Voltage (V) describes the quantity of electromagnetic force in which charge carriers are being pushed in an electric current.
  • Voltage is always a relative measurement between two points.
  • Wattage (W) is a convenience unit to describe electricity that includes amps and voltage, multiplied together (watts = amps x volts).
  • Volts and amps can be traded for each other in a current, as long as the overall amount of work (Wattage), stays the same. This is often done through induction.
  • Power is a colloquial term that usually means wattage.
  • Circuits are closed loops that consists of a voltage source, a load, and a return path called ground or common.

Part 3 - Current Types; AC & DC


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