The current through a 20-mH inductor is shown in Fig. 9. Sketch the voltage across the inductor. i(t) (A) 10 -10 0 1 2 Figure 9 3 4
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- 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=%=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.2- For the circuit shown below find the total capacitance and the voltage across each capacitor, and total energy stored in the capacitor. C1 10UF POWER S0v C2 15UF SuF C4 20UF 83
- For the circuit at right: a. Immediately after the switch is closed, what is the current in the inductor? 12V b. A long time later, what is the current through the inductor? c. What is the energy stored in the inductor in part (b)? d. A long time later, the switch is opened. Immediately after, what is the voltage across the inductor?The figure on the side is showing how the voltage on the capacitor in an RC-circuit changes with time The time needed for the capacitor to lose half its maximum charge Select one: a. 40 sec b. 80 sec c. 20 sec d. 30 secTRUE or FALSE a. A discontinuous change in the voltage requires an infinite current thus a capacitor resists an abrupt change in the voltage across it. b. The inductor takes power from the circuit when storing energy and delivers power to the circuit when returning previously stored energy.
- 1. The image below shows a plot of current versus time in a circuit containing and inductor. Draw a different plot that shows the voltage drop across the inductor as a function of time. It is OK if your plot is not numerically exact, but do show the shape of the time-dependence. I geono erlt gaibnaterob 0.5- 0.2 04 0.6 0.8 1.0 -0.5F Time (s) 1.1. Draw a different plot that shows the voltage drop across the inductor as a function of time. It is OK if plot is not numerically exact, but do show the shape of the time-dependence. your Current (A)Two capacitors of capacitance C1 = 100 nF and C2 = 5 μF are connected in parallel across a cell with emf V = 5V. What is the ratio of the energy stored on capacitor C2 to that stored on C1? Select one: a. 50 b. 0.02 c. 2500 d. 1Basic Electrical Engineering: Inductance and Capacitance You are an electrician working in an industrial plant. You discover the problem with a certain machine is a defective capacitor. The capacitor is connected to a 240-V AC circuit. The information on the capacitor reveals that it has a capacitance value of 10 µF and a voltage rating of 240 V AC. The only 10-µF capacitor in the storeroom is marked with a voltage rating 350 VDC. Can this capacitor be used to replace the defective capacitor? Explain your answer.
- Please show you detailed solution Number 44 A capacitor passes a current of 12.6 mA when supplied with 20-V AC with a frequency of 1000 Hz. The capacitance will A. 10 µF C. 10 nF B. 100 µF D. 100 nFPlease show your detailed solution Number 17 A 100-mH inductor is connected across a supply of 50 V AC. For which of the following frequency the circuit will have a current of 0.7958 A? A. 10 kHz C. 10 Hz B. 100 kHz D. 100 HzThe impedance of the capacitor of capacitance C is: Select one: a. Inversely proportional to C b. Directly proportional to C c. Inversely proportional to C2 Directly proportional to C2