Demonstrations · TEACHING ARCHIVE
Open and closed circuits explained
An open circuit occurs when there is a break in the circuit to stop the current from flowing. Breaks in the circuit can be due to many reasons, such as a loose lamp holder, an open switch or a missing wire in the circuit.
Demonstrations · 2010
A short circuit in an electrical circuit is one that allows a current to travel along a path where essentially no (or a very low) electrical resistance is encountered.
Explore activityDemonstrations · 2010
A Rheostat (also known as a variable resistor) is an electrical component to vary the amount of current flowing through the circuit.
Explore activity
