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 1.8e6 ohms. One pulse is delivered every time the fully charged capacitor loses 62.9 % of its original charge. What is the capacitance of the capacitor? Answer in farads.

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Because the capacitor loses 62.9% of its original charge:
q = ...

Solution Summary

The solution is given as a step-by-step equational process.

Two capacitors are connected in parallel. If a third capacitor is connected in parallel with the other two, does the equivalent capacitance increase, decrease, or remain the same? Explain.

1. What is the net capacitance of a capacitor given:
Relative permitivity is 500
The area is one square meter
The distance between the plates is 0.001 meters

The problem states:
You have two flat metal plates, each of area 1.00 m^2, with which to construct a parallel-plate capacitor.
(a) If the capacitor of the device is to be 1.00 F, what must be the separation between the plates?
(b) Could this capacitor actually be constructed?
Please review my solution below and correct

If a capacitor with a capacitance of 0.000005 farads is wired in a circuit with a total resistance of 5000 ohms (the standard unit of electrical resistance), how long must the capacitor be wired to a source voltage to reach 50% of its maximum charge?
(The Hint was: Begin by expressing q as 0.5Q)

1) A capacitor has a charge of 0.002C when it is connected across a 100V battery, Find its capacitance.
2) A capacitor has a capacitance of 6.40uF. How much charge must be removed to lower the potential difference of its plate by 50.0V?
3) The plates of a parallel-plate capacitor have areas of 40cm2 and are separated by 0.2mm

Please help with the following problem. Provide step by step calculations.
A capacitor, C1, is charged using a 6.3 V battery. C1 has a capacitance of 3.55μF
1) When this capacitor/battery circuit reaches equilibrium, what is the charge on each place of the capacitor?
2) When C1 is fully charged, the battery is remove

The electric potential energy stored in the capacitor of a defibrillator is 73 J, and the capacitance is 120 microFarads. What is the potential difference across the capacitor plates?