Ohm's Law
Ohm's Law describes the relationship between current (I, measured in amperes or amps), voltage (V, volts) and resistance (I, ohms). If you think about giving a circuit more energy, or voltage, then you would expect the flow of electrons, or current, to increase too. So, voltage and current have a directly proportional relationship - if one increases, the other increases. If one decreases the other decreases. If we increase the resistance of a circuit, the flow of electrons will decrease but the energy or voltage stays the same. As such, Ohm's Law states: V = IxR
Use the simulation to below to explore Ohm's Law. |
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