Frequency is defined as the number of pulses per second.

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Multiple Choice

Frequency is defined as the number of pulses per second.

Explanation:
Frequency is about how often the pulses occur each second. In pulsed electrical stimulation, each pulse has a duration (pulse width), and the device delivers pulses at a certain rate. The rate, measured in hertz, tells you how many pulses happen per second. So the statement that defines frequency as the number of pulses per second is the correct one. The duration of each pulse describes pulse width, not how often pulses occur. The average current relates to the overall current over time, not the rate. The amplitude is the peak strength of each pulse, not how often pulses occur.

Frequency is about how often the pulses occur each second. In pulsed electrical stimulation, each pulse has a duration (pulse width), and the device delivers pulses at a certain rate. The rate, measured in hertz, tells you how many pulses happen per second. So the statement that defines frequency as the number of pulses per second is the correct one. The duration of each pulse describes pulse width, not how often pulses occur. The average current relates to the overall current over time, not the rate. The amplitude is the peak strength of each pulse, not how often pulses occur.

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