Efficiency

Written by Jerry Ratzlaff on . Posted in Classical Mechanics

Efficiency is expressed in percentage and always less than 100%.

Abbreviated as \(\eta\) (Greek symbol eta)

formula

\(\eta =  \frac {W_o} {W_i} 100percent \)

\(\eta =  \frac {E_o} {E_i} 100percent \)

Where:

\(\eta\) = efficiency

\(W_o\) = work output

\(W_i\) = work input

\(E_o\) = energy output

\(E_i\) = energy input