Joulemeter

Key Stage 4

Meaning

A joulemeter is an electronic device used to measure the energy transfer by electricity in a circuit.

About Joulemeters

Joulemeters can be used to measure the energy transferred to an electrical component in a circuit.

A joulemeter can be used measure the total energy transferred to an immmersion heater.

A joulemeter can be made by attaching an ammeter in series with a component a voltmeter in parallel with the component and using a stopwatch to calculate the energy transferred using the equation

\(E=IVt\)

Where

\(E\) = The energy transferred (or electrical work done).

\(I\) = The current through the component.

\(V\) = The potential difference across the component.

\(t\) = The time over which energy has been transferred.