Define an electrical circuit, current direction, and how a switch controls the flow.
Definition of an electrical circuit and current direction.
Have you ever wondered how a battery makes a torch bulb glow? It requires a continuous, unbroken path called an electrical circuit. This circuit provides a complete route for electricity to travel through a device, allowing it to function.
Diagram of a simple cell and lamp circuit with current arrows.
Current flows from the positive terminal to the negative terminal.
Test understanding of current flow direction.
In a standard electrical circuit, what is the defined direction of the electric current?
Explanation of how a switch completes or breaks a circuit.
Connecting a battery directly to a bulb means it will stay on until the battery dies. To control when electricity flows, we use an electric switch—a simple device that can either complete or break a circuit.
Comparison matrix of Switch ON vs OFF.
Visual of the homemade safety pin switch in both positions.
A physical gap opens the circuit; bridging it closes the circuit.
Fill-blank on open/closed circuits.