2. Calculate the voltage applied to a 2.0 µF capacitor when it holds 3.0µC of charge.
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Q: If two capacitors of 15 and 20 microfarads are connected in series to a 600 volt supply, find (1)…
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Q: 4) How much energy does a 5mF capacitor connected to a 3v battery store? A)67.5 mJ B)7.5 mJ C)22.5…
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Q: How do you check the capacitor and the 3 diode if they are working or not? * 3:50 PM
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Q: (a) If the voltage waveform depicted in figure 1 is applied across the terminals of a luF…
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Q: 16. When a 3 µF charged capacitor is connected to a resistor, the voltage falls by 70% in 3.9 s.…
A: The solution can be achieved as follows.
Q: A constant current of 4 charges of capacitor. How long will it take to accumulate a total charge of…
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A: The solution is given below
Q: Describe how the stored energy varies with the area of parallel plate capacitors
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Q: B) What is the charge Q on the capacitor in units of microcoulomb?
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Q: Find Potential charge on cach Capacitor: 1ME 10MT 10MF Trcx 1.5V
A: First we will find equivalent capacitance seen by source.
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Q: Find the maximum charged value of the capacitor of the circuit below during the negative half cycle.…
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Q: Determine the following: a. maximum charge of the capacitor in Circuit Y b. maximum current of…
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A: Given I =4A , Q=8C WE know , Q= CV Now , I =Q/t = c dv/dt
THE SUBJECT IS BASIC ELECTRICAL ENGINEERING
Chapter 11. Capacitor
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- What is the unit of measurement for the strength of a capacitor? microamp microtorque microfarad microwattAn inductor has a current flow of 3 amperes when connected to a 240-volt, 60-Hz power line. The inductor has a wire resistance of 15 . What is the Q of the inductor?You are a journeyman electrician working in an industrial plant. Your task is to connect an inductor to a 480-V, 60-Hz line. To determine the proper conductor and fuse size for this installation, you need to know the amount of current the inductor will draw from the line. The nameplate on the inductor indicates that it has an inductance of 0.1 H. An ohmmeter reveals that it has a wire resistance of 10 . How much current should this inductor draw when connected to the line?
- 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?A capacitor uses air as a dielectric and has a capacitance of 3 F. A dielectric material is inserted between the plates without changing the spacing, and the capacitance becomes 15 F. What is the dielectric constant of this material?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?
- 4. In what form is the energy of a capacitor stored?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 microfaradYou 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.
- A parallel plate capacitor of 5 plates, each of one square meter of area and placed at a distance of 1.5 mm and a dielectric permittivity of 3.5. If the capacitor is charge to a 120-volt battery source, how much energy in mJ will be stored in it?How to calculate the energy stored in a 250nF capacitor at t=20μs if the voltage across it is 2.2sin(20^6t) volts?Design an experiment to determine what happens to the plate charge, stored energy, and voltage when the capacity of a disconnected (but charged) capacitor is changed