capacitor is (3.955x10^1) μC and there is no current flowing. What is the energy stored in the capacitor after five complete cycles? Express your result in nJ with three significant figures.
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- Two capacitors have capacitances of 2.22 μF and 0.514 μF. Determine the equivalent capacitance if they are connected in parallel and in series. (a) in parallel (b) in series μF UFTwo capacitors provide an equivalent capacitance of 28.00 μF when connected in parallel and 7.00 uF when connected in series. 1) What is the smaller capacitance of the capacitors? If both capacitors have the same capacitance, enter this value. (Express your answer to three significant figures.) Submit μF 2) What is the larger capacitance of the capacitors? If both capacitors have the same capacitance, enter this value. (Express your answer to three significant figures.) Submit μFThree capacitors with capacitances C₁ = 3C, C₂ = 5C, and C3 = C are connected in parallel. Use C = 69 µF. Input an expression in terms of C for the equivalent capacitance Ceq of the circuit. O What is the equivalent capacitance in F?
- A 14.5-μF capacitor is charged to a potential of 40.0 V and then discharged through a 65.0 Ω resistor. How long after discharge begins does it take for the capacitor to lose 90.0% of its initial charge? (Express your answer to three significant figures.) How long after discharge begins does it take for the capacitor to lose 90.0% of its initial energy? (Express your answer to three significant figures.) What is the current through the resistor at the time when the capacitor has lost 90.0% of its initial charge? (Express your answer to three significant figures.) What is the current through the resistor at the time when the capacitor has lost 90.0% of its initial energy? (Express your answer to three significant figures.)Each of the capacitors is fully charged and current has ceased to flow. If the equivalent capacitance of the network is 50 micro Farads, how much energy is stored in the capacitors?An electrical circuit contains a capacitor of 52 picofarads and a resistor of 1344 ohms. If the capacitor is fully charged, and then the voltage is interrupted, in how much time will about 95% of its charge be transferred to the resistor?
- EMF = Vo = 6 volts. and C = 5 μF Calculate the theoretical value of the charge (q) in the capacitor during charging at t = RC. Use equation 3.Two capacitors provide an equivalent capacitance of 16.00 μμF when connected in parallel and 4.00 μμF when connected in series. 1)What is the smaller capacitance of the capacitors? If both capacitors have the same capacitance, enter this value. (Express your answer to three significant figures.) 2)What is the larger capacitance of the capacitors? If both capacitors have the same capacitance, enter this value. (Express your answer to three significant figures.)The flash unit in a camera uses a special circuit to “step up” the 6.0V from the batteries to 500V, which charges a capacitor. The capacitor is then discharged through a flashlamp. The discharge takes 20μs, and the average power dissipated in the flashlamp is 1 x 106 W. What is the capacitance of the capacitor?
- Four capacitors are connected as shown in the figure below. (C = 16.0 µF.) An open circuit consists of four capacitors. It begins at point a and goes right before the wire splits into two parallel horizontal branches. On the upper branch, there is a capacitor C followed by a 3.00 µF capacitor. On the lower branch, there is a 6.00 µFcapacitor. The two branches reconnect and are followed by a 20.0 µF capacitor, which is then followed by point b. (a) Find the equivalent capacitance between points a and b.________________µF(b) Calculate the charge on each capacitor, taking ΔVab = 18.0 V. 20.0 µF capacitor ________µC 6.00 µF capacitor ________µC 3.00 µF capacitor ________µC capacitor C ________µCDuring charging, what is the voltage reading in the capacitor at t = τ if the initial voltage is 3V, R = 5Ω, and C = 50 µFThe figure above shows a circuit containing an electromotive force (a battery), a capacitor with a capacitance of C farads (F), and a resistor with a resistance of R ohms (Omega). The voltage drop across the capacitor is Q/C, where Q is the charge (in coulombs), so in this case Kirchhoff's Law gives RI + (Q/C) = E(t) since the current is I = (dQ/dt), we have R(dQ/dt) + (1/C)Q= E(t) Suppose the resistance is 30 ohms, the capacitance is 0.1 Farads, a battery gives a constant voltage of 40 volts, and the initial charge is Q(0)=0C.Find the charge and the current at time t. Q(t)=? I(t)=?