The capacitor in the figure below is initially uncharged. The switch S is closed at t = 0. (a) Explain how the circuit looks like immediately after the switch closes. (b) Immediately after the switch is closed, what is the current through each resistor? (c) Explain how the circuit looks like immediately after a long time when the switch closes.
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Q: What is the value of the current through the battery when the switches SW1, SW2, and SW3 are OPEN?
A: Given that;
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- A 1.13-mF capacitor is connected to a North American electrical outlet (AVms = 120 V, f = 60.0 Hz). Assuming the energy stored in the capacitor is zero at t = 0, determine the magnitude of the current in the wires at t = S. 174 x Your response differs from the correct answer by more than 10%. Double check your calculations. Al Need Help? Read It Submit Answerplease helpPART (1) Assume capacitor is fully charged when switch is at position 'a' for about 10 minutes. The switch is changed to position 'b' at t= 0. What is the current in the circuit immediately after the switch is closed? Assume after some time, the current in the circuit is 80.0 mA when the switch is at position 'b'. Can you find, what will be that time? 9.0 V 부 Paragraph a itur b 1.0 με PART (II) Assume a magnetic field of 5.2 T present inside the cyclotron. An electron enters the cyclotron with speed of 2.0 x 107 m/s. What is the radius of the electron's orbit just before they exit from the cyclotron. BI U A/ 10 Ω E✓ E GO + v
- HOW and/or then) 1. a) The circuit below has three resistors with values R₁-10 S2, R2-20 2, R3-30 S2, one initially (t=0) uncharged 0.001 F capacitor, and a 30 V battery. Find all the currents at t=0 (right after the switch is closed,) all the currents a long time after the switch is closed (at steady state), and the charge on the capacitor at t→∞0. At time t₁, once steady state with the switch close has been effectively reached, the switch is reopened. Find the currents at this time, right after reopening the switch. Make sure to make your reasoning clear! T=t₁ 4+ ww R₁ b JE S R₂ www www. R3 30 0.001 D₁ I₂ Iz 1+²0 12 O +=2In the circuit of the figure below, the switch S has been open for a long time. It is then suddenly closed. (Use the following as necessary: & for E, R₁, R₂, t, and C.) R₁ www T= (a) Determine the time constant before the switch is closed. www R₂ T = C (b) Determine the time constant after the switch is closed. I = (c) Let the switch be closed at t = 0. Determine the current in the switch as a function of time.In the circuit of the figure below, the switch S has been open for a long time. It is then suddenly closed. (Use the following as necessary: E for E, R,, R,, t, and C.) R1 R2 (a) Determine the time constant before the switch is closed. (R1 + R2)C (b) Determine the time constant after the switch is closed. (R2)C T = (c) Let the switch be closed at t = 0. Determine the current in the switch as a function of time. 一劍 I = R, R.
- The capacitor in the circuit shown is fully charged by a 24 V battery. The switch is closed at t = 0. At sometime after the switch is closed, the voltage across the capacitor is measured to be 10 V. What is the current in the circuit at this time, in Ampere? C = 3.0 µF, and R = 2.0 02. Your answer needs to have 2 significant figures, including the negative sign in your answer if needed. Do not include the positive sign if the answer is positive. No unit is needed in your answer, it is already given in the question statement. CilIn the circuit of the figure suppose that E = 9.00V, R = 15.0 ? and L = 0.060H. At t = 0, switch S1 is closed. What is the initial current through the resistor just after switch S1 is closed? 0 A 0.600 A 150 A Infinite What is the initial rate of change of the current in the circuit just after switch S1 is closed? 0 A/s 150 A/s 0.600 A/s InfiniteThe figure below shows a simplified model of a cardiac defibrillator, a device used to resuscitate patients in ventricular fibrillation. R C Riorso + When the switch S is toggled to the left, the capacitor C charges through the resistor R. When the switch is toggled to the right, the capacitor discharges current through the patient's torso, modeled as the resistor Rorso allowing the heart's normal rhythm to be reestablished. HINT (a) If the capacitor is initially uncharged with C = 8.25 µF and E = 1270 V, find the value of R (in ohms) required to charge the capacitor to a voltage of 795 V in 1.20 s. 3.904*10**-6 (b) If the capacitor is then discharged across the patient's torso with Rorso = 1240 0, calculate the voltage (in V) across the capacitor after 4.50 ms. 512.06 V