In an electrical circuit, resistance is a measure of the resistance to current flow. Georg Simon Ohm , a German physicist who researched the link between voltage, current, and resistance, is the name given to Ohms.
According to Ohm's law, the current flowing through a conductor between two places is proportional to the voltage across the conductor.
The formula for Ohm's law is as follows:. Thus , where is a constant called resistance. is the voltage and is the current. depends on the dimensions of the conductor and also on the material of the conductor. Its SI unit is Ohm .
According to Ohm's law, it is a measure of the opposition to current flow in an electrical circuit.