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A well known relationship that describes the relationship between Voltage and current through a device's resistance expressed mathematically as V= IR. This formula says that voltage across the device is equal to the current through the device multiplied by the resistance.

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How can Ohms law be used to calculate the resistor value for an LED when multiple voltage/cu...

Generally, if you want to light a diode, like in example, you should see the specs of the chosen diode (i.e. you need 3V and 0.02A in order to light it). After that, you'll have to choose the right re …
Giovanni Ruberto's user avatar