Blackrose06
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help! i need help with a 6 mark question about energy-
i have already put
The LED has an energy efficiency of 32%, so would use less energy during use compared to the Halogen bulb which has an energy efficiency of only 10%.
The Halogen bulb costs on average 10hrs/penny, whereas an LED has 30hrs/penny making the LED more worth the price.
Therefore, the LED is the best bulb to use because you get more use for your money and has a higher energy efficiency.

is there anything else i can put. the question is attached
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Last edited by Blackrose06; 1 month ago
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AshKetchum1206
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I think that would give you the 5 marks already.

You have compared the Halogen efficiency (1) to LED efficiency (1). You have compared the unit cost of Halogen (1) and the unit cost of LED (1). You have told which is the best one (1).

I would add what is meant by the term of Energy Efficiency, if I were to answer this question.
See what other people say too
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Blackrose06
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ok will do, thanks
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