1.

What is the formula for overall stage efficiency given by lewis?

A. E <sub>o</sub> = N<sub>t</sub> /N <sub>a</sub>
B. E<sub>o</sub> = N<sub>t</sub> N <sub>a</sub>
C. E<sub>o</sub> = N<sub>t</sub> -N <sub>a</sub>
D. E<sub>o</sub> = N<sub>t</sub> +N <sub>a</sub>
Answer» B. E<sub>o</sub> = N<sub>t</sub> N <sub>a</sub>


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