A 4.0µF capacitor discharges while connected in series with a resistor. The current drops from its initial value of 6.0A down to 3.0A after 200ms.
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- A 20.0 microF capacitor and a 180 Ohm resistor are connected in series. The capacitor is initially fully charged to 12V. Find the charge on the capacitor after two time constants as it discharges.An initially uncharged 4.47 x 10-6 F capacitor and a 6350 resistor are connected in series to a 1.50 V battery that has negligible internal resistance. What is the initial current Io in the circuit? Calculate the circuit's time constant 7. How much time t must elapse from the closing of the circuit for the current to decrease to 3.39% of its initial value? Io = T = t = 2.36 x107 2.839 X10-2 3.45 Incorrect A SA 15 μF capacitor initially charged to 25 μC is discharged through a 1.2 kΩ resistor. How long does it take to reduce the capacitor's charge to 10 μC?
- An RC series circuit has a time constant of 40.0ms. When the switch is closed to charge the 50.0 µF capacitor, the initial current is 65.0 mA. What is the potential difference across the capacitor at a time 20.0 ms after closing the switch? Select one O a 12.9 b. 25.0 V O c 14.5 V O d 11.5 V e 20.5 VThe figure displays two circuits with a charged capacitor that is to be discharged through a resistor when a switch is closed. In figure (a) below, R₁ = 21.7 Q and C₁ = 5.08 µF. In figure (b) below, R₂ = 10.5 Q and C₂ = 8.00 μF. The ratio of the initial charges on the two capacitors is 902/901 = 1.82. At time t = 0, both switches are closed. At what time t do the two capacitors have the same charge? Number i 0.188 Units 00 ms (a) (b)A 6.00 nF capacitor that is initially uncharged is connected in series with a 900 2 resistor and an emf source with & = 360V and negligible internal resistance. A long time after the circuit is completed (enough time that capacitor is fully charged), what is the current across the resistor? O 0.20 A O 0.067 A 1.33 A OA 0.24 A O 0.40 A 0.16 A
- In an RC series circuit, ℰℰ = 12.0 V, R = 1.07 MΩ, and C = 2.16 µF. (a) Calculate the time constant. (b) Find the maximum charge that will appear on the capacitor during charging. (c) How long does it take for the charge to build up to 20.5 µC?The figure shows a simple RC circuit consisting of a 100.0 V battery in series with a C = 10.0 μ F capacitor and a R = 4.3 × 105 resistor. Initially, the switch S is open and the capacitor is uncharged. 100.0 V A) 1.1 x 10-³ C B) 2.9 × 10-3 C C) 3.7 x 104 C D) 5.2 x 10-4 C E) 6.6 × 104 C I S R 10.0 µF How much charge q is on the capacitor 2.0 s after the switch is closed? (Hint: First compute the final charge on the capacitor and the RC circuit's time constant.)An RC circuit has a 11 F capacitor and a 0.5 ogm resistor. If the initial charge stored on the capacitor is 20 C then at what time will the charge be 2.5 C?
- You take a 6.34 V battery, a 226 kQ resistor, and an uncharged capacitor to put together a series circuit. You connect the battery and after 21.2 seconds the current in the circuit has fallen to 61% of its initial value. What is the value of the capacitor in microfarads (µF)? (Enter answer as an integer. Do not enter unit.) A Click Submit to complete this assessment. «< Question 2 of 2The capacitor shown below has an initial voltage of 0.15 V before the switch is closed. The resistance is 8.5 x 106 ohms and the capacitance is 2.0 microfarads. How long after the switch is closed in seconds does it take for the voltage across the resistor to drop to 0.083 V? R CH B A D