Part A A circuit contains a single 280-pF capacitor hooked across a battery. It is desired to store four times as much energy in a combination of two capacitors by adding a single capacitor to this one. How would you hook it up? The capacitor must be connected in series to the original capacitor. The capacitor must be connected in parallel to the original capacitor. Submit Request Answer Part B What would its value be? Express your answer to two significant figures and include the appropriate units. HA C = Value Units

Part A A circuit contains a single 280-pF capacitor hooked across a battery. It is desired to store four times as much energy in a combination of two capacitors by adding a single capacitor to this one. How would you hook it up? The capacitor must be connected in series to the original capacitor. The capacitor must be connected in parallel to the original capacitor. Submit Request Answer Part B What would its value be? Express your answer to two significant figures and include the appropriate units. HA C = Value Units

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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4. You can easily find the time constant if you are given a graph of voltage across a discharging capacitor as a function of time. When t = Tc = RC, the voltage across the capacitor is AV (t = Tc) = AV, e¹≈ 0.37 AV Therefore the time constant is just how long it takes for AV (t) to reach 37% of its initial value. The graph shows the voltage across a discharging 0.2 μF capacitor as a function of time. Use the following steps to determine the resistance. a. What is 37% of the initial voltage? 21 b. How long does it take (after discharge starts) for the voltage to reach 37% of the initial voltage? This time is equal to the time constant. c. Use your time constant from (b) to determine the resistance. AV (Volts) 2 1.5 0.5 %40 80 120 160 time (milli-sec)
A 5 µF capacitor in parallel with a 10 µF capacitor. Connected in series is another 5 µF capacitor. The voltage of 120 V is applied to the whole combination. Solve for: a. the total capacitance of the circuit b. charge stored in each capacitor C. energy stored in each capacitor d. voltage across each capacitor
*Chapter 32, Problem 018 GO 7Your answer is partially correct. Try again. The circuit in the figure consists of switch S, a 4.60 V ideal battery, a 25.0 MS2 resistor, and an airfilled capacitor. The capacitor has parallel circular plates of radius 5.30 cm, separated by 4.00 mm. At time t = 0, switch S is closed to begin charging the capacitor. The electric field between the plates is uniform. At t = 260 ps, what is the magnitude of the magnetic field within the capacitor, at radial distance 2.50 cm? R. NumberT7.475 Units the tolerance is +/-5%
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Two RC circuits are shown. In 4 x 10-6 F 2 x 10-6 F each circuit, the capacitor is fully charged and the switch is open. Then, the switch in each circuit closes at the exact same time 25 0 250 N and the capacitors begin to discharge. Circuit A Circuit B i) How long does it take the capacitor in Circuit A to reach 37% of its maximum value? 1.0 x 10-4 s 5.0 x 10-4 s 2000 s 10,000 s Cannot be determined ii) Which capacitor retains its charge the longest? Capacitor A Capacitor B They discharge at the Cannot be same rate determined ww
RC Circuits 6. The charge on a C = 0.4F capacitor is measured as a function of time in a physics lab and produces the following graph. The capacitor is part of a simple circuit having only a battery, a capacitor, and a resistor in series. The capacitor starts uncharged and at t=0s, the battery is plugged in and the capacitor charges. In general, the charge of a charging capacitor is given by: q(t) = Qmax(1 – e-t/RC) тах Charge vs. Time 20 18 16 14 ū 12 10 8 4 2 1 3 4 7 8. 9 10 Time (s) а. Use the graph to estimate the time constant for this circuit, T. b. Estimate the resistance of the resistor R in this circuit. с. Estimate the battery's voltage AV in this circuit. Charge (C)
how do i answer the attached physics question?
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For the circuit shown, determine the steady- state voltage across each capacitor and the energy stored in the 124 F capacitor. 6uF 40V + 4MF 8 MFT - F12 MF
Capacitor Circuit 9 V.A If C1 = 32 µF, what is the value of C2? Enter the numerical value in units of uF. C1 C23 Ceq Type your answer... Capacitors C1 and C2 are combined into an equivalent capacitor that has a 10 capacitance of Ceg = 60 µF. %3D Assuming the equivalent capacitor is a parallel plate capacitor with no dielectric, what size plates are required to generate the given capacitance if the separation distance between the plates is 0.90 mm? Enter the numerical value of the area in SI units. Type your answer...
Q2 Consider the circuit shown in Figure P26.23, where Ci - 6.00 μΕ, C,-3.00 μF, and ΔV= 20.0 V Capacitor C¡ is first charged by the closing of switch S1. Switch S¡ is then opened, and the charged capacitor is connected to the uncharged capacitor by the closing of S2. Calculate the initial charge acquired by C, and the final charge on each capacitor. AV |C2 S2 Figure P26.23