SOLUTION

Electric current cannot flow if a circuit is open. An open circuit does not provide a complete path for current flow. If the circuit became open, no current would flow. The light bulb would not glow. Free electrons of the conductor would no longer move from one atom to another. An example of an open circuit occurs when a light bulb burns out. The filament (the part that produces light) opens.

The opening in the filament stops current flow from the source of electric energy. This causes the bulb to stop burning, or producing light.