# Question: A hospital emergency room ac generator operates at a frequency

A hospital emergency room ac generator operates at a frequency of 60 Hz. If the output voltage is at a maximum value (magnitude) at t = 0, when is it next

(a) A maximum (magnitude),

(b) Zero,

(c) At its initial value (direction and magnitude)?

(a) A maximum (magnitude),

(b) Zero,

(c) At its initial value (direction and magnitude)?

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