In the circuit the voltage and current expressions are v = 41e−500t V, t ≥ 0 i = 4.6e−500t mA, t ≥ 0+. (Figure 1) Figure 1 of 1 Part A Find R. Express your answer to three significant figures and include the appropriate units. Submit Previous Answers Request Answer Part B Find C. Express your answer to three significant figures and include the appropriate units. Part C In the circuit the voltage and current expressions are v = 41 e−500 tV, t ≥ 0 i = 4.6 e−500 tmA, t ≥ 0+ (Figure 1) Figure 1 of 1 Find τ (in milliseconds). Express your answer using three significant figures. 9τ = ms AΣϕ ↓ vec Submit Request Answer Part D Find the initial energy stored in the capacitor. Express your answer to three significant figures and include the appropriate units. Submit Previous Answers Request Answer Part E How many microseconds it takes to dissipate 65% of the initial energy stored in the capacitor. Express your answer using three significant figures. t = μs Submit Request Answer
The switch in the circuit in (Figure 1) has been closed for a long time before opening at t = 0. Figure 1 of 1 Part A Find i1(0−). Part B Find i2(0−). Express your answer to three significant figures and include the appropriate units. Submit Request Answer Part C Find i1(0+). Express your answer to three significant figures and include the appropriate units.Part D Find i2(0+). Express your answer to three significant figures and include the appropriate units. i2(0+) = Value Units Submit Request Answer
In the circuit shown in the following figure(Figure 1) the capacitor has capacitance 19 μF and is initially uncharged. The resistor R0 has resistance 11 Ω. 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 Ω/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. Figure 1 of 1 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 units. Submit Request Answer Part B What is the direction of the induced current in the small circuit? clockwise counterclockwise Submit Previous Answers
A silicon diode has a forward voltage drop of 1.2 V for a forward dc current of 100 mA. It has a reverse current of 1 μA for a reverse voltage of 10 V. The barrier potential voltage is 0.7 V and kT/q = 25.7 mV. (a) (i) Determine the bulk resistance of the diode. (ii) Determine the reverse resistance of the diode. (b) (i) Determine the junction resistance at dc current of 2.5 mA. (ii) Determine the ac resistance at forward dc current of 2.5 mA. (c) (i) Determine the junction resistance at dc current of 25 mA. (ii) Determine the ac resistance at forward dc current of 25 mA. (d) Consider the diode at 290∘K. (i) Derive an expression for the dynamic slope resistance rd = dV/dI from the diode equation. (ii) Determine the dynamic slope when the forward biased current is 10 μA. (iii) Determine the dynamic slope when the forward biased current is 5 mA.
Find vL(0) Vs = 4.0 V, R1 = 8.0 kΩ, R2 = 4.0 kΩ, and Is = 2.0 mA in the circuit shown. At time t = 0 the switch opens after having been closed for a long time. (Figure 1) Part A Find vL(0). Express your answer to three significant figures with appropriate units. Submit Request Answer Part B Find iC(0). Express your answer to three significant figures with appropriate units. Figure 1 of 1 Submit Request Answer Part C How much energy is stored in the inductor in steady-state? Express your answer to three significant figures with appropriate units.
Suppose that R = 5 kΩ and C = 1 μF. Part A What is the time constant for the discharge of the capacitors in (Figure 1)? Express your answer to two significant figures and include the appropriate units. Figure 1 of 1 Submit Request Answer Provide Feedback
A series RLC circuit consists of a 50 Ω resistor, a 3.3×10−3 H inductor, and a 0.48 μF capacitor. It is connected to an oscillator with peak voltage of 5.0 V, with a frequency of 3000 Hz. Questions from 5 to 11 are based on this information a. 62.2 Ω b. 110.5 Ω c. 69.5 Ω d. 131.2 Ω e. None of the above.
In the following circuit, V1 = −1.5 V, R1 = 3.3 kΩ, R2 = 29 kΩ, R3 = 10 kΩ and R4 = 4.7 kΩ. Supply voltage is VCC = 15 V and the operational amplifier saturates at ±14 V and can provide a current up to 10 mA. (a) Calculate an expression for vID as a function of vI and vO and indicate if the feedback positive or negative. (b) Calculate the operational amplifier output current (io) when vo = −14 V. (c) Sketch v0 vs. vl for (−12 V ≤ vI ≤ 12 V). Indicate coordinates of key points in graph (any of the following: saturation, output switching, zero crossings)