Problem: A heart pacemaker fires 72 times a minute. Each time a 40.0-nF capacitor is charged (by a battery in series with a resistor) to 0.632 of its full voltage. What is the value of the resistance?
FREE Expert Solution
The voltage across a capacitor during charging:
Time for one beat, t = 60 s/72 = 0.8333 s
C = 40.0 nF(10-9F/1nF) = 40.0 × 10-9 F
V0 is the charging voltage.
Problem Details
A heart pacemaker fires 72 times a minute. Each time a 40.0-nF capacitor is charged (by a battery in series with a resistor) to 0.632 of its full voltage. What is the value of the resistance?
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