The more resistance in the circuit the less current flows. The amount of resistance depends on what is connected in the circuit. In any electrical circuit there is resistance to the flow of current. Voltage is the equivalent to water pressure and current the flow of water through pipes.
Often in trying to explain voltage and current, a water analogy is used. To have electricity flowing you need some driving force - back to voltage which is the driving force. For example if you connect a lamp to the socket show above, electricity will flow through the wires and be converted into heat and light in the lamp. The image below illustrates various voltages.Ĭurrent is the flow of electricity around a circuit. To most people, this is probably the most people familiar quantity. Voltage is the driving force that makes every thing work. When talking about electrical circuits there are three main quantities to consider - voltage, current and resistance. Tying everything together with a few examples.How the main parts are related (the famous Ohm’s law).
If you have no idea how electrical circuits work, or what people mean then they talk about volts and amps, hopefully I can shed a bit light.
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