Electrical Machines
Which of the following alternators contain large number of poles?

None of these
 Hydro alternators.
 Turbo alternators.
 Aame in both alternators.

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Electrical Machines
No load primary current in a transformer

 leads the applied voltage somewhat less than 90Ã&
 lags behind applied voltage by exactly 90Â&am
 leads the applied voltage by exactly 90Â&
 lags behind applied voltage somewhat less than 90Ã

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