103.  ssm In a heart pacemaker, a pulse is delivered to the heart 81 times per minute. The capacitor that controls this pulsing rate discharges through a resistance of 1.8 x 106 Ω. One pulse is delivered every time the fully charged capacitor loses 63.2% of its original charge. What is the capacitance of the capacitor?

 

A capacitor discharges following the relationship

 

 

 

 

Get rid of e by taking ln of both sides

 

 

So the time required is one time constant !

 

 

 

 

 

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This page last updated on June 19, 2018