What is an Amp or Ampere?

What is an Amp or Ampere = The amount of current flowing through the wire.

Note: Amps and volts are not the same – voltage is pressure behind the current, the higher the pressure the higher the potential current.
Example: Think water out of a standard garden hose, it has a nice constant flow of water; it will shoot out a few inches. That’s a low flow (current flow) due to low water pressure (voltage pressure like 120 volts).
Now a fire hose, on the other hand, has a higher flow due to a much higher water pressure.


Ampere Source From Wikipedia, the free encyclopedia

The current drawn by typical constant-voltage energy distribution systems is usually dictated by the power (watts) consumed by the system and the operating voltage. For this reason the examples given below are grouped by voltage level.

North American domestic supply – 120 V AC

Most United States, Canada and Mexico domestic power suppliers run at 120 V.

Household circuit breakers typically provide a maximum of 15 A or 20 A of current to a given set of outlets.

  • 22-inch/56-centimeter portable television (35 W): 290 mA
  • Tungsten light bulb (60–100 W): 500–830 mA
  • Toaster, kettle (2 kW): 16.6 A
  • Immersion heater (4.6 kW): 38.3 A