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- Three capacitors having values of 2.2 F, 280 F, and 470 pF are connected in parallel. What is the total capacitance?7. The resistor in an R-L series circuit has a voltage drop of 53 V, and the inductor has a voltage drop of 28 V. What is the applied voltage of the circuit?This circuit is connected to a 1000-Hz line. The resistor has a voltage drop of 185 V. the inductor has a voltage drop of 740 V, and the capacitor has a voltage drop of 444 V. The circuit has an apparent power of 51.8 VA. ETITZVA51.8PFER185VIRRPEL740VILXLVARsLLEC444VICXCVARsCC
- You find that a 25-F capacitor connected to 480 VAC is defective. The storeroom has no capacitors with a 480-VAC rating. However, you find two capacitors rated at 50 F and 370 VAC. Can these two capacitors be connected in such a manner that they can replace the defective capacitor? If yes, explain how they are connected and why the capacitors will not be damaged by the lower voltage rating. If no, explain why they cannot be used without damaging the capacitor.Incandescent lighting of 500 W is connected in parallel with an inductive load. A clamp-on ammeter reveals a total circuit current of 7 A. What is the inductance of the load connected in parallel with the incandescent lights? Assume a voltage of 120 V and a frequency of 60 Hz.If a capacitor produces 15 ampere on a 240-volt supply, which of the following is its microfarad rating? 166 microfarad 15 microfarad 200 microfarad 3450 microfarad
- 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=5Two capacitors having voltage 2F and 4F are connected in series. This combination is connected to a 100V supply, calculate the voltage across the 2F capacitor. a) 66.67V b) 33.33V c) 100V d) 0VThree capacitors are connected in parallel and have the following voltage ratings: C1 = 32 uF with 80 V, C2 = 65 uF with 220 V, and C3= 105 uF with 120V. Determine the total charge that C2 can hold.
- A 500 nF capacitor is connected in series with a 100 kohm resistor and the circuit is connected to a 50V, d.c. supply. Calculate the initial value of current flowing, the value of current 150 ms after connection, the value of capacitor voltage 80 ms after connection, and the time after connection when the resistor voltage is 35 V.Three capacitors A, B and C are charged as follows: A = 10 µF , 100V ; B = 15 µF, 150 V ; C = 25 µF , 200V . They are connected inn parallel with terminals of like polarity together. What is the voltage across the combination?Three capacitors are connected in parallel and have the following voltage ratings: C1 = 32 uF with 80 V, C2 = 65 uF with 220 V, and C3= 105 uF with 120V. Determine the total charge that C1 can hold. 2560 uC 2500 uC 2.56 uC 2.56 C