What Resistance Value is Needed for a Pacemaker Operating at 60 BPM?

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To determine the resistance value needed for a pacemaker operating at 60 BPM with a 4.0uF capacitor, the time constant formula is essential. The voltage must reach 63% of its maximum to trigger the pacemaker, which relates to the time constant concept. The calculation involves using the time constant formula, which is derived from the resistance and capacitance values. The discussion emphasizes the importance of understanding the time constant in relation to capacitor discharge. Accurate resistance calculation is crucial for the pacemaker's proper function.
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Homework Statement


A heart pacemaker is designed to operate at 60 beats/min using a 4.0uF capacitor. What value of resistance should be used if the pacemaker is to fire when the voltage reaches 63 percent of maximum?


Homework Equations





The Attempt at a Solution



0.63 x (4/1000) x 60
I don't know if this method is right though?
 
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The 63% is not a random choice; it is the standard for the "time constant" idea. You can look it up in Wikipedia if it isn't handy in your textbook. http://en.wikipedia.org/wiki/Time_constant, fifth paragraph.

So, you need a formula for the time constant of a capacitor to solve this problem.
 

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