Differentiate between an open circuit and a closed circuit. Give an example of a situation for each.
Open Circuit: An open circuit is an incomplete electrical path where electric current cannot flow from one terminal of the power source to the other. In an open circuit, electrical devices like a bulb will not glow. Example: A circuit where the switch is in the 'OFF' position, or a connecting wire is broken.
Closed Circuit: A closed circuit is a complete and continuous electrical path through which electric current can flow from one terminal of the power source to the other. In a closed circuit, electrical devices like a bulb will glow (if working). Example: A circuit where the switch is in the 'ON' position, allowing current to pass through all components.
Explanation
Checks the student's ability to define and differentiate between open and closed circuits. Requires correct understanding of current flow and relevant examples for each type of circuit.