A circuit in a home provides power to a light fixture. The homeowners want to use a compact fluorescent bulb instead of an incandescent bulb. Compact fluorescent bulbs can produce as much light as incandescent bulbs but with less energy. How is this possible?

Question

A circuit in a home provides power to a light fixture. The homeowners want to use a compact fluorescent bulb instead of an incandescent bulb. Compact fluorescent bulbs can produce as much light as incandescent bulbs but with less energy. How is this possible?

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• Energy is destroyed when it passes through an incandescent bulb.
• Incandescent bulbs produce other forms of energy, too, including heat.
• Fluorescent bulbs produce other forms of energy, too, including heat.
Fluorescent bulbs have been designed to put out more energy than they receive

Answer 1

from the circuit, while incandescent bulbs typically waste more energy as heat. Compact fluorescent bulbs are more efficient at converting electrical energy into light, resulting in less energy being needed to produce the same amount of light as an incandescent bulb.