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- 10 mH jok a resistor, capacitar eard inductor measure the resistoane R using Use to an ohm metere Measure the time constants for the two circuits below and find values of C and L I need help vith the building of this. circuit. 1f you could make them ánd find ans wer to the question abore, I would the C appretiate it gieatly(VD₂ = Determine the voltage across each capacitor in the circuit figure below. 0.68 V, VD₂ 0.56 V) = 240 V rms 50 Hz 1:1 ooooo elele C₁ H 1μF D₁ HE D₂ .C₂ 1 μFThrough a capacitor of capacitance 15 micro-farad with a frequency of 50 hz. Compute its reactance 212 ohms O 4,712 ohms O 0.0047 ohm O 0.0002 ohm
- 5. Suppose the following circuit is left open for a long time. 5000 22 24 V (a) What is the facial curren What is the carte II What is the ches What is the not the pos 80mF when we close thei 90s after we close the switch? dissipe the resistor 90s arter ene capacitor ons after we close the suit Close the switchi difference across the spacitor 008 after we close the switch across the resisto we close the swit 12 the potential (g) What is the energy stored in the capacitor 90s after we close the switch? (h) What is the energy dissipated by the resistor during the first 90s since the switch is closed?58. || What are the charge on and the potential difference across each capacitor in FIGURE P26.58? + 9 V HE C₁ = 5 μF C₂ = 15 μF C3 = 30 μF FIGURE P26.58 + 12 V C FIGURE P26.59 с a C9 calculate the cuanent to cwirg thnough +the 5mH inductoRo () calculate the voltage () the enengy stoned by the indue ton the enengy stored the capacitoR Assume, the indueton and the eapacitor
- Consider the circuit shown below. b) a) What is the current through 220 22 when the 2N4441 is conducting? What is the capacitor voltage that will turn on the 2N4441? What is the minimum voltage that can turn-off the 2N4441? c) 0.2 μF 2.2 1 kQ 1N752 VB = 10 V 9+25 V 220 2N4441 V₁ = 1 V IT = 7 mA IH= 5 mA| - PHY196 24- A 3-nF capacitor with a 12-uC charge on it is discharged through a 3-kO resistor. What is the current after 9 us? O A) 0.39 A B) 0.19 A C) 0.49 A D) 0.59 A O E) 0.29 APower factor 90 to 100% 88 to <90% 85 to <88% 80 to <85% 75 to < 80% 70 to < 75% 65 to < 70% 60 to <65% 55 to <60% 50 to <55% Less than 50% Surcharge None 2% 4% 9% 16% 24% 34% 44% 57% 72% 80% Use the table given for the following. A house with inductive loads has an avg consumption of 40kW and 26kVAR is supplied 230 Vrms source. We want to make the surcharge 0% by adding a capacitor. a. What is the smallest kVar of the capacitor that would reduce the surcharge to 0%?
- A 4.7 Micro-Farad capacitor is in series with a 470 K-Ohm resistor with a 12V power supply. How long will it take for the capacitor to fully charge? OA 4.7 sec O B. Cannot be determined O.11 sec O D.470 ms O E. very quickly, it cannot be seenA series R–L–C circuit comprises a 5µF capacitor, a 4ohm resistor and a variable inductance L. The supply voltage is 10∠0◦ V at a frequency of 159.1 Hz. The inductance is adjusted until the p.d. across the 4 ohm resistanceis a maximum. Determine for this condition (a) the value of inductance, (b) the p.d. across each component and (c) the Q-factor of the circuit.1)The value of the capacitance reactive power in VAR is? /2) The value of the capacitor in micro farad is?