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Potential difference and its importance |
| Answer» A battery if fully charged has a potential difference between 2 points. The positive and the negative terminals. One terminal connects to some material that has a shortage of electrons and the other connects to a terminal that has an excess of electrons.This Potential difference is necessary to force electron flow through the resistance of a load and conductors. Otherwise no current will flow and no work is done.The greater the potential difference the greater the electron flow.Potential difference is measured in Volts and the electron flow is measured in Amps.Ohm’s law I= V/R describes the relationship between resistance , voltage and current. | |