10. The efficiency of a light bulb can be written as the ratio of what two quantities?
1 answer:
Explanation:
The efficiency of a system is the ratio of the output of system to the input of that system.
For a light bulb;
Efficiency = Power output / Power input
Efficiency is used in rating a bulb.
It is impossible to find a system that has 100% efficiency because the total power input is not converted to the output delivered.
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