Which of these shows the formula for the efficiencies of the auxiliaries n1?

Which of these shows the formula for the efficiencies of the auxiliaries n1? Correct Answer n1 = (net power transmitted by the generator / gross power produced by the plant)

The auxiliary equipment or auxiliaries in a power plant are those equipment which are driven by the electricity taken from the generated power of the plant. Their efficiency is given by, n1 = (net power transmitted by the generator / gross power produced by the plant).

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Which of the following auxiliaries is essential for starting the generating unit of a hydro plant?
Which eliminate the need for many auxiliaries?
ইংরেজি Primary auxiliaries ভাষায় কয়টি ?
'You need not worry too much about the matter. I'll take care of it.' Here the model auxiliaries are used to express-