The voltage across a C = 816 mF capacitor is v(t) = 6 sin(100t) + 1 V. Find the initial energy in Joules stored in the capacitor (at t=0).
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- You are an electrician working in an industrial plant. You discover that the problem with a certain machine is a defective capacitor. The capacitor is connected to a 240-volt AC circuit. The information on the capacitor reveals that it has a capacitance value of 10 mF and a voltage rating of 240 VAC. The only 10-mF AC capacitor in the storeroom is marked with a voltage rating of 350 WVDC. Can this capacitor be used to replace the defective capacitor? Explain your answer.An AC circuit contains a 24 resistor, a 15.9-mH inductor, and a 13.3F capacitor connected in parallel. The circuit is connected to a 240-V, 400-Hz power supply. Find the following values. XL=XC=IR=AIL=AIC=AP=WVARsL=VARsC=IT=AVA=PF=%=A resistor and a capacitance are connected in series to an emf source. The time constant of the circuit is 0.87 s. What will be the 35 - time constant of the new circuit when another capacitor identical to the first is connected in series with the circuit? O a) 0.973s O B) 1,742 s O C) 2.034 s O D) 2.136 s O TO) 0.435 s
- The following circuit is at steady state before the switch closes. Find the inductor current after the switch closes. -2t Ans: i(t) = 0. 3 – 0. 2e t20 - SW1 16 Q 10 Q 12 V 20 HIn the circuit shown in figure the switch is closed at time (t=0). The rate of change of current dt across inductor will be tm0 20 8F 20v (3HSelect all correct statement(s):1, The equivalent resistance for resistors in parallel is the harmonic mean of all resistors;2, The equivalent capacitance for capacitors in series is the sum of all capacitors;3, The equivalent inductance for inductors in series is the sum of all resistors.32None of them is correct1
- The figure below shows a simple RC circuit with a 3.30-μF capacitor, a 4.40-M resistor, a 9.00-V emf, and a switch. What are the following exactly 9.00 s after the switch is closed? (a) the charge on the capacitor 13.7204 UC (b) the current in the resistor 0.0110522 x Your response is off by a multiple of ten. HA (c) the rate at which the capacitor is storing energy μW (d) the rate at which the battery is delivering energy μWv (V) AAA Determine the current flowing through a 7 nF capacitor. (You must provide an answer before moving on to the next part.) The current through the 7 nF capacitor is sin Trt nA. aptive YNC 135 A 117 cecece cox cecece cecrete ▬▬ Q Search -- Extr REYEEEEE um ET CELLE C 0:50 K G 3 PA series R-C circuit consists of a resistor of 700 02, time constant of 28 msec. The value of capacitor in the circuit will be equal to UF a. 0.025 O b. 20 O c. 40 O d. 19.6
- The figure below shows a simple RC circuit with a 3.50-µF capacitor, a 3.60-MQ resistor, a 9.00-V emf, and a switch. What are the following exactly 6.50 s after the switch is closed? S C R (a) the charge on the capacitor (b) the current in the resistor µA (c) the rate at which the capacitor is storing energy (d) the rate at which the battery is delivering energyIn the circuit in the figure, C = 0.05 microfarad, the starting voltage of the capacitor is V0 = 30V and the starting current of the coil is I0 = 0 amper. In this case, the voltage response of the circuit is: V (t) = - 10e ^ -5000t + 40e ^ -20000 V for t> = 0Since IL (t) current is at t = 0.0004th second, how many mA will be.6. The waveform of the current in a 40mH inductor is shown in following Figure. Find the waveform of the inductor voltage. i(t) mA 4 10 -10 2 √141= -400 mu 400 md 400 mu -toomd 3 4 5 cetelus istszus 2stc3ms 31+64thl 4steśms 6 t (ms)