A 10^-8 F capacitor (10 nanofarads) is charged to 100 V and then disconnected. One can model the charge leakage of the capacitor with a RC circuit with no voltage source and the resistance of the air between the capacitor plates. On a cold dry day, the resistance of the air gap is 5 x 10^13 ohms; on a humid day, the resistance is 8 x 10^6 ohms. How long will it take the capacitor voltage to dissipate to half its original value on each day?

A capacitor with capacitance C = 5 µF is charged to a voltage V = 10V. It is then discharged through a resistor R=2 MQ. At what time after the start of the discharge process has the voltage across the capacitor fallen to 1V?

Figure R ww 10.0 pF 20.0 pF 40.0 pF < 1 of 1 30.0 pF Part G After the switch is closed, find the maximum potential difference across the 30.0 pF capacitor. Express your answer in volts. IVE ΑΣΦ V30 = Submit Part H V40 = Submit After the switch is closed, find the maximum potential difference across the 40.0 pF capacitor. Express your answer in volts. ||| ΑΣΦ Part I IA = Submit Part J Request Answer T = Request Answer After the switch is closed, find the maximum reading of the ammeter A. Express your answer in amperes. IVE| ΑΣΦ Submit Request Answer ? After the switch is closed, find the time constant for the circuit. Express your answer in picoseconds. G| ΑΣΦ Request Answer ? ? ? V V A ps

A heart pacemaker fires 67 times a minute. Each time it fires, a 35.0 nF capacitor is charged by a battery in series with a resistor to 0.682 of its full voltage. What is the resistance?