OE-5F capacitor is charged by a 10.0V battery through a resistance R. The capacitor reaches a potential difference of 4.43V at a time 2.08s after charging begins. Find R
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- A 1.5 V battery produces 44.6 mA when it is across a 30.0 0 load. The potential difference across the battery's terminals is_ V. Normal format with 3 SF.In the figure the ideal batteries have emfs E₁ = 4.89 V and E₂ = 10.2 V, the resistances are each 2.410, and the potential is defined to be zero at the grounded point of the circuit. What are potentials (a)V₁ and (b)V₂ at the indicated points? www R₂ R₁ R3 ww V₁ &₂ R₁You have a 79.1 mF capacitor initially charged to a potential difference of 12.5 V. You discharge the capacitor through a 3.69 Ω resistor. What is the time constant?
- Problem 9: A capacitor is charged with a total charge of q = 5.1E-05 C. The capacitor is wired in series with a resistor, R-8 Randomized Variables q = 5.1 E-05 C ← Δ Part (a) Input an expression for the time constant, τ, of this circuit using the variables provided and C for capacitance. HOME 4 5 6 BACKS CLEAR Submit Hint I give up! Hints: 1 -deduction per hint. Hints remaining: Feedback: deduction per feedback. Part (b) What is the value of the time constant in s if the capacitor has capacitance of 1.0 μF? Δ Part (c) How long will it take the capacitor to discharge half of its charge in seconds?E2 R1 R2 2. Find the charge on the capacitor after the switch has been left open for some time, then closed for some period of time. We can assume that C = 2 µF, with batteries of values E1 = 2V and E2 = 1 V, and resistor values R1 R2 = 0.25 2. 0.52 andc). Calculate the current I that will flow through the circuit shown below if the entire arrangement is connected to 12V power supply. 15 2 15 2 15 2 15 2 15 2 15 2 d) A parallel plate capacitor is made from 25 plates, each 70mm by 120 mm interleaved with mica of relative permittivity If 5. the capacitance of the capacitor is 3000 pF determine the thickness of the mica sheet.
- In the figure the ideal batteries have emfs E, = 4.89 V and E2 = 10.2 V, the resistances are each 2.41 Q, and the potential is defined to be zero at the grounded point of the circuit. What are potentials (a)V1 and (b)V2 at the indicated points? R, R, R3 -oA 1.60-μF capacitor is charging through a 12.0 Ω resistor using a 12.0 V battery. What will be the current when the capacitor has acquired 1/4 of its maximum charge and Will it be 1/4 of the maximum current?Switch S1 has been closed and S2 has open for a long time until the capacitors are fully charged. At t-0, S1 is opened and S2 is closed. Ifs=12V, C₁-4mF and C₂-8mF, R₁-2.92ko and R₂-3.25 k0; what is the current passing through R₂ at t-0 in units of mA? Please express your answer using two decimal places. E 20 Answer: HH C₂ G a b
- A 10^-7 F capacitor (100 nanofarads) is charged to 50 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 6 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?GgYou have a 66.9 mF capacitor initially charged to a potential difference of 11.5 V. You discharge the capacitor through a 4.81 resistor. What is the time constant? time constant: After what multiple of the time constant does the potential difference reach 1.47 V? multiple of time constant: