5. In a series RC circuit the time constant has a value of tau = 4.7s and the capacitor has a value of 10.0 uF. Both elements are connected to a 150 V battery. (a) What is the value of the resistor R?
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A: The time constant of the circuit is τ=RC=1.9×106 Ω3.4×10-6F=6.46 s
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5. In a series RC circuit the time constant has a value of tau = 4.7s and the capacitor has a value of 10.0 uF. Both elements are connected to a 150 V battery.
(a) What is the value of the resistor R?
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- At time t = 0, an RC circuit consists of a 20.0-V emf device, a 50.0-0 resistor, and a 146.0-µF capacitor that is fully charged. The switch is thrown so that the capacitor begins to discharge. (a) What is the time constant t of this circuit? (b) How much charge is stored by the capacitor at t = 0.5t, 2t, and 4t? q(t = 0.57) μC %D q(t = 2t) µC q(t = 4t)A capacitor is discharged through a 30.0 Ω resistor. The discharge current decreases to 25.0% of its initial value in 2.30 ms. What is the value of the capacitor?Consider a series RC circuit as in the figure below for which R = 8.00 MQ, C = 1.00 μF, and & = 34.0 V. E R (a) Find the time constant of the circuit. S (b) What is the maximum charge on the apacitor after the switch is thrown closed? μc (c) Find the current in the resistor 10.0 s after the switch is closed. μA
- In a series RC circuit composed of a resistance R, a capacitor, and an emf source, the energy stored in the capacitor decreases with time as the capacitor discharges. After how many time constants is this stored energy one-fifth its initial value? A) 0.55 B) 1.04 C) 0.80 D) 0.90 E) 0.35Consider a series RC circuit as in the figure below for which R = 8.10 MΩ, C = 2.40 ?F, and ℰ = 30.5 V. (a) Find the time constant of the circuit.?s(b) Find the maximum charge on the capacitor after the switch is thrown closed.??C(c) Find the current in the resistor 10.0 s after the switch is closed.??A. Two 6.0 µF capacitors, two 2.2 k resistors, and a 12.5 V source are connected in series. Starting from the uncharged state, how long does it take for the current to drop from its initial value to 1.30 mA? . An RC circuit has R=6.7k and C= 2.0 µF. The capacitor is at a voltage Vo at t=0, when the switch is closed. How long does it take the capacitor to discharge to 1.0% of its initial voltage?
- Consider a series RC circuit as in the figure below for which R = 3.40 MN, C = 2.80 µF, and E = 33.5 V. R (a) Find the time constant of the circuit. s (b) Find the maximum charge on the capacitor after the switch is thrown closed. | µC (c) Find the current in the resistor 10.0 s after the switch is closed. µAPhysics The figure below shows a simple RC circuit with a 2.70-µF capacitor, a 3.20-MΩ resistor, a 9.00-V emf, and a switch. What are the following exactly 6.00 s after the switch is closed? (a) the charge on the capacitorµC(b) the current in the resistorµA(c) the rate at which the capacitor is storing energyµW(d) the rate at which the battery is delivering energyµW.A 4.60-?F capacitor that is initially uncharged is connected in series with a 7.50-k Ω resistor and an emf source with ℰ = 245 V and negligible internal resistance. Just after the circuit is completed, what are (a) the voltage drop across the capacitor; (b) the voltage drop across the resistor; (c) the charge on the capacitor; (d) the current through the resistor? (e) A long time after the circuit is completed (after many time constants) what are the values of the quantities in parts (a) – (d)?
- Consider a series RC circuit as in the figure below for which R = 2.70 MΩ, C = 1.40 ?F, and = 32.0 V. (a) Find the time constant of the circuit. s(b) Find the maximum charge on the capacitor after the switch is thrown closed. ?C(c) Find the current in the resistor 10.0 s after the switch is closed. ?AA 100-Ω resistor is connected across the terminals of a DC source. The 100-Ω resistor consumes 0.794 W of power. The 100-Ω resistor is then replaced by a 200-Ω resistor, such that 0.401 W is consumed by the 200-Ω resistor. The emf ε and internal resistance r of the DC source are?RC Circuits: For the circuit shown in the figure, V = 60 V, C = 40 µF, R = 0.90 MQ, and the battery is ideal. Initially the switch S is open and the capacitor is uncharged. The switch is then closed at time t = 0.00 s. At a given instant after closing the switch, the potential difference across the capacitor is twice the potential difference across the resistor. At that instant, what is the charge on the capacitor? 03 R C