2. For the arrangement shown in Fig. find (a) the equivalent circuit capacitance and (b) the voltage across a 4.5µF capacitor. 4.5 μF 4.5 μF 4.5 μF H HHH 3 µF 1µF 1µF 500 Vo
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- Fill in all the missing values. Refer to the formulas that follow. Resistance Capacitance Time constant Total time 150 k 100 F 350 k 35 s 350 pF 10 s 0.05 F 1.2 M 0.47 F 12F 0.05 s 86 k 1.5 s 120 k 470 pF 250 nF 100 ms 8 F 150 s 100 k 150 ms 33 k 4 F =RCR=CC=R Totaltime=5The voltage across a 2µF capacitor is shown in Fig. Determine the waveformfor the capacitor current (a) Find mathematical expression of v(t) for 0 ≤ t ≤ 2 (b) Find mathematical expression of v(t) for 2 ≤ t ≤ 6Given a set of caapcitors: 7 nF, 6 nF, 5 nF, 4 µF, 3 pF and 10 µF, solve the following problems: A. Solve the total capacitance for a parallel circuit and illustrate the circuit. B. If the parallel circuit is connected to a 60V battery, find the total charge. C. Given the same voltage, solve for energy.
- The current in a 20 mH inductor is known to be i=40 mA,t≤0; i=A1e−10,000t+A2e−40.000tA,t≥0. The voltage across the inductor (passive sign convention) is 28 V at t=0. 1. Find the expression for the voltage across the inductor for t>0. 2. Find the time, greater than zero, when the power at the terminals of the inductor is zero.A series circuit has a capacitor of 1.5625x10^(-8)F a resistor of 2x10^4 ohms, and an inductor of 1H. If the initial charge on the capacitor is zero,. if a 12-volt battery is connected to the circuit and the circuit is closed at t=0, determine the charge on the capacitor at any time t6 A capacitor is constructed with parallel metal plates, If the plate separation is 2 mm and the capacitance is given to 1 nano Farads, determine the area of the parallel plates of the device. Select one: a. 0.12 square meters b. 0.23 square meters c. 0.27 square meters d. 0.20 square meters
- (a) If the capacitor is initially uncharged with C = 8.50 µF and = 1230 V, find the value of R (in ohms) required to charge the capacitor to a voltage of 785 V in 1.40 s. (b) If the capacitor is then discharged across the patient's torso with Rtorso = 1240 Ω, calculate the voltage (in V) across the capacitor after 4.50 ms.Two capacitors 10 and 15 μf are in series with two 20 μf capacitors which are connected in parallel to each other. If the emf supplied is 200 V, find (a) the combined capacitance (b) the charge on the 10 μf and (c) the potential drop across the 15 μf capacitorTwo capacitors, of capacitance 3µF and 5µF, are connected as shown to batteries A and B which have EMF 4 V and 12 V respectively. What is the energy stored in each of the capacitors? Calculate also the stored energy in each capacitor when the terminals of battery A are reversed, and when the battery B is disconnected, and the points X and Y are connected together.
- The voltage across a 2µF capacitor is shown in Fig. Determine the waveformfor the capacitor current (a) Find mathematical expression of v(t) for 0 ≤ t ≤ 2 (b) Find mathematical expression of v(t) for 2 ≤ t ≤ 6 (c) Draw the waveform for the capacitor current.Given the capacitance of four capacitors Ca= 30 µF, Cb = 10 µF, Cc = 40 µF and Cd = 12 µF. If Cb and Cc are connected in series and the series combination is connected in parallel with Cd then the whole combination is connected in series with Ca, Calculate (a) the equivalent capacitance (b) the voltage across each capacitor if the circuit is supplied by 250 volts DC source (c) the charge on each capacitor.* If the current through a 5 mH inductor is increasing at 3 A/s, what is the voltage across the inductor? * The current in an 8 µH inductor is given by i(t) = 3t + 2 A. What is the value of the inductors voltage at t = 2 s.