For the circuit shown the RMS ratting current of the Thyristor =
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- A 47-ohms load resistor is connected in series with a 10-uF capacitor. At what frequency will the capacitor reach the same value as the load resistor?Calibri (Body) -11 by AaBbCcDx AaBbCcD AaBbC AaBbCc AaB AaBbCc. mat Painter BIU 1Normal 1No Spaci. Heading 1 Heading 2 Title Subtitle Chang Styles d Font Paragraph Styles IMPEDANCE QUIZ # 2 1. What capacitance when connected in series with a 500Q resistor will limit the current drawn from a 48-mV 465-kHz source to 20µA? * a. 144pF b. 145pF c. 146pF d. 147pF MY ANSWER: c.146pF 2. What is the total impedance at 20kHz of a series circuit consisting of a 1.5mH inductance, a 100Q resistance, and a 0.08uF capacitance? * a. 1340 41.7 b. 1930 L-37.2" C. 920 290 d. 530 2-12.6°n 12 For the given waveforms, waveform D the waveform E. put of -D uestion Degrees 30 60 90 180 210 360 N. In a step down transformer, number of turns in the primary winding is lesser than the number of turns in the secondary winding. Select one: O True en O False nere to search
- A supply of 240V-50HZ feeds a highly inductive load of 502 through thyristor bridge that is half-controlled. What is the load power factor when the firing angle delay is 45°? A. 0.6565 B. 0.5566 C. 0.6655 D. 0.5656 1igatioOhmic components have a V-I curve O Non-linear VI curve. Parabolic VI curve. Sinusoidal VI curve. Straight line VI curve.the shunt capacitance is a capacitor O a. Between a phase and the ground O b. between phases and a phase to ground c. none of the answers O d. Between phases
- 6. What is the effect of load inductance on the ripple current? 7. i effect of chonnine Bock and boost 8. Wh 9 What chopping 10. At what duty evcle does the load current rinnle current heThe average value of sinusoidal varying voltage is more than its r.m.s. value. Select one: O True O False Which of the following formula is CORRECT? a. E= - L d0/dt O b. E = - N dl/dt O . L= NI / O O d. W = 0.5 12L In a step down transformer, number of turns in the primary winding is lesser than the number of turns in the secondary winding. Select one: O True O FalseBy convention, the sign of reactive power to an inductance is and the sign of reactive power to a capacitance is
- For the circuit shown the RMS ratting current of the Thyristor= Firring angle-40Degree phasel-120sinwt Vo 20 Ohm O 4.5A O 4.6A O 2.6A O 1.6A O 2.5A O 3.6A O 1.SA 3.5AValue of series impedance if inductance is 5mH , resistance is 4 ohm and frequency is 50 Hz.Calculatethe Value of the Capaeitance at resanamce if w-SooD rad/Seea.k or6 齐