Question text
17 What is the definition of efficiency? useful energy input A efficiency = total energy output total energy input B efficiency = total energy output useful energy output C efficiency = total energy input total energy output D efficiency = total energy input
17 What is the definition of efficiency?
useful energy input
A efficiency =
total energy output
total energy input
B efficiency =
total energy output
useful energy output
C efficiency =
total energy input
total energy output
D efficiency =
total energy input
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