The magnitude of AP is the same for all stimuli that reach threshold regardless of the strength of the stimulus. But some stimuli that reach threshold are weaker than others. The deference lies in the frequency of APs generated by the stimuli. Strong stimuli generate a higher frequency of APs than do weaker stimuli
Work Step by Step
The magnitude of the AP is the same for strong or weak stimuli, as long as the stimuli reach threshold. But strong stimuli generate APs with greater frequencies than weak stimuli are able to do.