What is the period of a 200 Hz signal?

The period of a signal is the duration of one complete cycle of the waveform and can be calculated using the formula:

[ \text{Period (T)} = \frac{1}{\text{Frequency (f)}} ]

In this case, you have a frequency of 200 Hz. To find the period:

1. Substitute the frequency into the formula:

[ T = \frac{1}{200 \text{ Hz}} ]

2. This calculation yields:

[ T = 0.005 \text{ seconds} ]

3. Converting seconds into milliseconds (1 second = 1000 milliseconds):

[ 0.005 \text{ seconds} = 5 \text{ ms} ]

This means that the period of a 200 Hz signal is 5 milliseconds, which makes this the correct answer. Understanding the relationship between frequency and period is key in neurophysiological monitoring, as it plays a critical role in identifying the characteristics of various signals encountered during intraoperative monitoring.