A 2-Henry inductor has 120 turns. How may turns must be added to raise it inductance to 3 henry? answer: 27 turns
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Q: Example: 1.16 A moving coil instrument gives a full scale deflection of 10mA, when the potential…
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- 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.A 15-F AC capacitor is connected in series with a 50 resistor. The capacitor has a voltage rating of 600 WVDC. The capacitor and resistor are connected to a 480-V, 60-Hz circuit. Is the voltage rating of the capacitor sufficient for this connection?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.
- A postage stamp mica capacitor has the following color marks starting at the upper left dot: yellow, violet, brown, green, no color, and blue. What are the capacitance value, tolerance, and voltage rating of this capacitor?A pure capacitive circuit is connected to a 480-volt, 60-Hz power source. An ammeter indicates a current flow of 24 amperes. The circuit current must be reduced to 16 amperes by connecting a second capacitor in series with the first. What is the value of the existing capacitor? What value capacitor should be connected in series with the original capacitor to limit the circuit current to 16 amperes?An RC series circuit is connected to a 120-V, 60-Hz power source. The resistor is 25 and has a voltage drop of 65 volts. What is the capacitance of the capacitor?
- A 470- uF capacitor is connected in series with a 120-k2 resistor. How long will it take the capacitor to charge completely?MAKE ONE ORIGINAL WORDED PROBLEM WITH DIAGRAM AND ITS FREE BODY DIAGRAM FOR CAPACITANCE IN SERIES CONNECTION NO UPVOTE IF NOT ORIGINAL AND NO DIAGRAMS ONLY UPVOTE IF FOLLOWED INSTRUCTIONS SHOW COMPLETE SOLUTIONSFor circuit given in figure 5, find total capacitance and total charge. C1 = 20pF C2 = 30pF 5V C3 = 30pF C5 10pF C4 = 30pF Figure 5
- Two series capacitors C1 and C2 are connected in series to a 24V battery. The dielectric for between the plates are K1=3.0 and K2= 4.0. Without any dielectric, capacitors C1 and C2 had equal capacitance of 5uF. What is the voltage across C2?Determine the equivalent inductance and equivalent current of the inductive circuit in Figure Q4. If L5 is replaced with a capacitor of 0.5 mF, how would it affect the branch current? The alternating Voltage source has an amplitude of 20 Vm. Vm Sine 50 Hz L1 5 mH L2 3 mH cele rele Figure Q4 rele celer L3 6.6 mH L4 2.8 mH reler L5 7 mH