Current transfers energy around circuits. Circuit components have various properties that can be measured and then used to make circuits for control and also circuits for testing other components.

In the end he had a circuit that could withstand the most vigorous shuffling, cotton socks against nylon carpeting, across his floor. It could withstand the mighty electric charge that only a ...

and the concept of electrical circuits. It demonstrates how static electricity is created and how current electricity flows through complete circuits, using examples like a train and various ...