A ceramic material can be defined as an organic compound consisting of a metal or semimetal and one or more nonmetals: (a) true
1 answer:
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Answer: LED have the lowest cost of operation.
Explanation:
If we ignore the initial procurement cost of the items the operational cost of any device consuming electricity is given by
Among the three item's LED consumes the lowest power to give the same level of brightness as compared to the other 2 item's thus LED's shall have the lowest operational cost.