When you're dealing with electricity, you need to be able to measure it.
Units of Measurement (1)
Voltage
Several types of measurements relate to electricity. The first of these is voltage, which is measured in volts (V). Voltage is the pressure of the electricity. In a given medium, the speed of electricity is constant, but the pressure is not. The typical flashlight battery has a voltage of 1.5 V. The electricity in your home, on the other hand, is 120 V. So you could say that the electricity in your house has a lot more pressure behind it.
Current
The second area of measurement for electricity is current, which is measured in amperes or amps (A). Current is the volume of electrons; that is, the number of electrons passing a certain point in ...
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