Electronic Formulas Page

Ohms Law

Ohm’s law states that the voltage across a conductor is directly proportional to the current flowing through it, provided all physical conditions and temperatures remain constant.

To demonstrate this a demo circuit was set up.

The circuit is put together and given the values the expected result is

1.5v ÷ 10.09Ω = 0.148A or 148mA

A you can see the answer was not as expected but instead 104.43mA. The reason for this is that the circuit has resistance due to the multi-meters.