9. The voltage across a 2200-pF capacitor is vc(t) = 50 cos (2n10ªt) V. %3D Derive expressions for ic(t) and pclt). Is the capacitor absorbing power, delivering power, or both? Explain.
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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?a) The voltage across a 20uF capacitance is v. = 50 sin( at - 80) volts and Frequency equal to 100 Hz. Determine the current through the capacitor i and sketch its waveform. b) Define phasorFill in the blanksadd, capacitance, charge capacity, dielectric, dissipate, electrical circuits, , passive, plates,proximity, storesA capacitor is a 1 …………. two-terminal electrical component that 2 ……… potential energy in anelectric field. The effect of a capacitor is known as 3. …………... While some capacitance exists betweenany two electrical conductors in 4. …………… in a circuit, a capacitor is a component designed to 5.…… capacitance to a circuit. The capacitor was originally known as a condenser.The physical form and construction of practical capacitors vary widely and many capacitor types are incommon use. Most capacitors contain at least two electrical conductors often in the form of metallic 6.………… or surfaces separated by a 7. ………medium. A conductor may be a foil, thin film, or anelectrolyte. The nonconducting dielectric acts to increase the capacitor's 8. ………… ………. Materialscommonly used as dielectrics include glass, ceramic, plastic film, paper, mica, and oxide…
- a. Show how you would connect all five capacitors to get a maximum capacitance and find the maximum capacitance in terms of C. b. Show how you would connect all five capacitors to get a minimum capacitance and find the minimum capacitance in terms of C.how do i calculate the inverse capacitance and its uncertainty if the capacitance value 1.8748+/- 0.0006. please show steps im using this example to do my other values.At 0-, no currrent flows through the capacitors because they are open, how did you combine the capacitors for the voltage divider since it is the capacitance value and not reactance, is it right? Can we just combine the capacitance value? Please explain. I did not understand..
- 1. What impedance vector 0 – j22 represents:A. A pure resistance.B. A pure inductance.C. A pure capacitance.D. An inductance combined with a resistance.A 20-ohm resistor and a capacitor are connected in series with a battery of 60 volts. At t = 0, there is no charge on the capacitor. Find the capacitance if the current at t = 5 seconds is 3/e^s amperes. Ans. 0.05 Faradsa) The current through a pure capacitor is given byi = 28.28cos(314t).Derive an expression for the voltage across the capacitor in the form v = Vm cos(wt) and comment on your answer. b)Estimate the value of the current I and the voltage V in each of the circuits shown in Figure QA1(c) and justify your method of estimation.
- A multi-plate capacitor is made up of 501 sheets of aluminum 20 cm x 30 cm with an insulation of paraffin paper 0.0015 cm thick. What is the capacitance in microfarads of the capacitor? (k for paraffin paper is 3) a. 50 b. 55 c. 35 d. 67When the capacitor is charged current flows on either side of the capacitor. Do electrons cross the gap to allow the current on the other side of the circuit?(b) Is charging and discharging time of capacitor equal in a theoretical RC circuit?Plase explain your answer by using relating formula.Required information Problem 06.037 - DEPENDENT MULTI-PART PROBLEM - ASSIGN ALL PARTS The current through a 17-mH inductor is 4 sin 100t A. NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. Problem 06.037.a - Voltage across an inductor Find the voltage vt). The voltage is cos 100t V.