4.4

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·         4.4 recall and use the relationship:

Version 1

 

Efficiency = Useful E_out / Total E_in x 100

 

Useful E_out =useful energy output

Total E_in = useful energy input

Version 2

 

Efficiency = Useful E_out / Total E_in

 

Useful E_out = useful energy output (j)

Total E_in = total energy input (between 0 and 1)

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