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LEDs are low energy alternatives to conventional light bulbs but they still generate a lot of heat when they are switched on. They need to be attached to a heat sink to keep them cool. Which of the following would make a good heat sink for an LED?

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LEDs are low energy alternatives to conventional light bulbs but they still generate a lot of heat when they are switched on. They need to be attached to a heat sink to keep them cool. Which of the following would make a good heat sink for an LED?






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