7. Why do think the hot plate was so inefficient? Provide a simple modification you could easily make to increase its ef

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7 Why Do Think The Hot Plate Was So Inefficient Provide A Simple Modification You Could Easily Make To Increase Its Ef 1 (53.72 KiB) Viewed 56 times

7. Why do think the hot plate was so inefficient? Provide a simple modification you could easily make to increase its efficiency. 8. What was the most efficient appliance? The Kettle 9. Discuss your most efficient appliance. Provide reasons as to why this appliance is the most efficient. How could you improve it even further? Provide some simple engineering modifications that would improve its efficiency. 10. Why is efficiency such an important measure for today's appliances? 11. Efficiency is not only a measure as to how much of the original energy drawn goes into something useful (the purpose of the appliance - heating water in this case), but also tells us how much energy has been wasted (not useful for the purpose of the appliance). How can you tell whether or not a light bulb (normal incandescent light bulbs, fluorescent bulbs, LEDs etc) is efficient without calculating (or measuring). You simply turn it on and make a few observations.