In the circuit in figure 4 (R = 1, C = 1.5 μF, 2.3 V), = the switch is initially open. How long does it take to charge the capacitor to 60% after the switch is closed? A. 0.38 μs B. 0.77 μs C. 1.37 μs D. 1.53 us ω Figure 4 R C

A 90-mF capacitor is charged completely through a 60-Ω resistor. How long will it take for the capacitor to lose 80% of its energy?

The figure displays two circuits with a charged capacitor that is to be discharged through a resistor when a switch is closed. In figure (a) below, R₁ = 23.32 and C₁ = 5.04 μF. In figure (b) below, R2 = 10.82 and C₂ = 8.10 μF. The ratio of the initial charges on the two capacitors is 902/901 = 1.61. At time t = 0, both switches are closed. At what time t do the two capacitors have the same charge? 0.0 (a) (b) Number i Units

In the circuit shown in the following figure(Figure 1) the capacitor has capacitance 19μF and is initially uncharged. The resistor Ro has resistance 11 2. An emf of 84.0 V is added in series with the capacitor and the resistor. The emf is placed between the capacitor and the switch, with the positive terminal of the emf adjacent to the capacitor. The small circuit is not connected in any way to the large one. The wire of the small circuit has a resistance of 1.1 /m and contains 25 loops. The large circuit is a rectangle 2.0 m by 4.0 m, while the small one has dimensions a = 13.0 cm and b = 18.0 cm. The distance c is 5.0 cm. (The figure is not drawn to scale.) Both circuits are held stationary. Assume that only the wire nearest the small circuit produces an appreciable magnetic field through it. Part A The switch is closed at t = 0. When the current in the large circuit is 4.70 A, what is the magnitude of the induced current in the small circuit? Express your answer with the appropriate…

In the figure the potential difference V of the battery is 10V. Each capacitor C has a value C = 10 μF. What is the charge on the capacitor C1.

The energy required to charge a 10 µF capacitor to 100 V is a) 0.1 J b) 0.05 J c) 5 x 10(-9) d) 10 x 10(-9) J

Find the total capacitance for all 5 circuits. Do not forget units. C21 C1 1µF 1µF C3 C4 C5 1µF 1µF 1µF C6 C7 C2 1µF 1µF 1µF Figure 2 C8 Figure 1 1µF Figure 3 HE HE HE HE HH

When the switch is in position 1, the circuit will charge the capacitor. Find the Thevenin Equivalent Circuit for the charge phase and determine the time constant (Rh*C) for the charge phase.

plz answer in details, thanks...

In the box below, show that the time constant r is the time it takes the voltage across a charging capacitor to reach the value (1-1/e)Vmax