ABSTRACT
Voltage is the electric force that drives current around an electric circuit. The unit of voltage is the volt, symbol V. Most cells produce a voltage of about 1.5 V. The voltage of the mains supply is 230 V.
Voltage is the electric force that drives current around an electric circuit. The unit of voltage is the volt, symbol V. Most cells produce a voltage of about 1.5 V. The voltage of the mains supply is 230 V.