Please answer the following question: Fact 1: Aswitch is used to start the flow of current in an electrical circuit. Fact 2: With switch closed, electricity flows through wires, switch and bulb, to light up the bulb. Given the two facts above, answer the question "What powers a light bulb?" with the following options: - structure and function - The tungsten filament - photosynthetic pigments? - Unplugging a lamp - heat production - heat is produced - Unscrewing a light bulb - The flow of electrical current
Answer:
The flow of electrical current