A common voltage for flashlight batteries is 1.5 volts (DC). A common voltage for automobile batteries is 12 volts (DC).
Common voltages supplied by power companies to consumers are 110 to 120 volts (AC) and 220 to 240 volts (AC). The voltage in electric power transmission lines used to distribute electricity from power stations can be several hundred times greater than consumer voltages, typically 110 kV to 1,200 kV (AC) .
The voltage used in overhead lines to power railway locomotives is between 12 kV and 50 kV (AC).
Read more about this topic: Voltage
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