An alternator is being paralleled with one on the lineAt the INSTANT the circuit breaker is closed, the frequency of the incoming alternator will normally （）.<br>A:increase<br>B:not change<br>C:decrease<br>D:be exactly 60 hertz

An alternator is being paralleled with one on the lineAt the INSTANT the circuit breaker is closed, the frequency of the incoming alternator will normally （）.
A:increase
B:not change
C:decrease
D:be exactly 60 hertz

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