Now the one place kids have always looked to as the ultimate refuge - the open road - may start feeling like a closed circuit.

They cut their phone lines and patch in calls on a closed circuit.

Do not forget that whatever voltage source you have is part of the closed circuit.

When the wires touch the metal, a closed circuit is created.

The closed circuit on the delta side provides some benefits.

This one is a closed circuit for just the two of you.

A closed circuit has a complete path for current to flow.

The motor should test as a closed circuit with some resistance.

Nobody yet has burned out one of those things on a closed circuit.

Without a closed circuit at this end, the book had said it was very dangerous to send anything living through the system.