Under de conditions, find the energy stored in the capacitors in Fig. 6.13.
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- Three capacitors having capacitance values of 20F,40F, and 50F are connected in parallel to a 60 - Hz power line. An ammeter indicates a circuit current of 8.6 amperes. How much current is flowing through the 40F capacitor?You are working in an industrial plant. You have been instructed to double the capacitance connected to a machine. The markings on the capacitor, however, are not visible. The capacitor is connected to 560 volts and an ammeter indicates a current of 6 amperes flowing to the capacitor. What size capacitor should be connected in parallel with the existing capacitor? What is the minimum AC voltage rating of the new capacitor? What is the minimum DC voltage rating of the new capacitor? What is the minimum KVAR size that can be used in this installation?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.
- 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.Find the equivalent capacitance with respect to the terminals a, b Determine the the initial voltage drop for the equivalent capacitance with respect to the terminals a, bFind the equivalent capacitance with respect to the terminals a,b Determine the the initial voltage drop for the equivalent capacitance with respect to the terminals a, b
- Please draw the problem and answer, thank you. A capacitor is made of 2 rectangular metal plates with side length of 3 cm x 6 cm separated by a distance of 2.36 cm with water in between the plates. The capacitor has a voltage of 110 v and is not connected to a battery. Calculate the capacitance. What is the new capacitance if we replace water with a new dielectric material with a constant of 3.75 in between the plates? What is the new voltage? What is the charge on each plate?A capacitor is made of 2 rectangular metal plates with side length of 3cmx6cm separated by a distance of 2.36 with water in between the plates. The capacitor has a voltage of 110v and is not connected to a battery. Calculate the capacitance. What is the new capacitance if we replace water with a new dielectric material with a constant of 3.75 in between the plates? What is the new voltage? What is the charge on each plate?Three capacitors of 2, 3 and 6 microfarads are connected in series to 500 volts d.c. Find (1) the charge on each capacitor and (2) the energy stored in the 6 microfarad capacitor if connected to the supply.
- A capacitor C with 1 mF is charged by a constant voltage source (U). Source and capacitor are connected by a resistor R with 10 ko. To discharge the capacitor the source is replaced by a short. U R 1 R charging discharging The voltage source is replaced by a constant current source with an output of 1 mA. Please draw the voltage at the capacitor qualitatively over the time.A capacitor is made of 2 rectangular metal plates with side length of 3cmx6cm separated by a distance of 2.36cm with water in between the plates. The capacitor has a voltage of 110v and is not connected to a battery. Calculate the capacitance. What is the new capacitance if we replace water with a new dielectric material with a constant of 3.75 in between the plates? What is the new voltage? What is the charge on each plate? Follow this format- Given: Required: Equtions: Solution: Answer:What is the effect in the overall capacitance, stored charge and energy of a network of identical capacitors when they are connected in series and energized by a constant voltage source (battery)