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Explanation: The efficiency of the output watt of 37 is 0.38 and the efficiency of output
watt of 90 is 0.48. The efficiency of the output watt of 180 is 0.57
To determine the efficiency of a system where the output power is 180 watts, we need more information. Efficiency is calculated by taking the ratio of the output power to the input power and often expressed as a percentage. It is described by the formula:
[ text{Efficiency} (%) = left( frac{text{Output Power}}{text{Input Power}} right) times 100 ]
Without the value of the input power, we cannot calculate the efficiency for an output of 180 watts.