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In figure 3, the supply voltage V is_ a. 500V b. 100V c. 200V d. 400V The voltage across LC combination in figure 5 is. a. Zero b. 1,200V c. 400V d. 200√2 At series resonance, a. Circuit impedance is very large Circuit power factor is minimum b. c. Voltage across L or C is zero d. Circuit power factor is unity At series resonance, the voltage across L or C is. a. Equal to applied voltage b. Less than applied voltage c. Much more than applied voltage d. Equal to voltage across R An ac system supplies an apparent power of 10KVA to a circuit; the reactive power being 6KVAR. The power factor of the circuit is a. 0.8 a. 0.6 b. 0.75 c. 1

In figure 3, the supply voltage V is_ a. 500V b. 100V c. 200V d. 400V The voltage across LC combination in figure 5 is. a. Zero b. 1,200V c. 400V d. 200√2 At series resonance, a. Circuit impedance is very large Circuit power factor is minimum b. c. Voltage across L or C is zero d. Circuit power factor is unity At series resonance, the voltage across L or C is. a. Equal to applied voltage b. Less than applied voltage c. Much more than applied voltage d. Equal to voltage across R An ac system supplies an apparent power of 10KVA to a circuit; the reactive power being 6KVAR. The power factor of the circuit is a. 0.8 a. 0.6 b. 0.75 c. 1

Delmar's Standard Textbook Of Electricity
Delmar's Standard Textbook Of Electricity
7th Edition
ISBN:9781337900348
Author:Stephen L. Herman
Publisher:Stephen L. Herman
Chapter30: Dc Motors
Section: Chapter Questions
Problem 6RQ: What is CEMF?
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In figure 3, the supply voltage V is_ a. 500V b. 100V c. 200V d. 400V The voltage across LC combination in figure 5 is. a. Zero b. 1,200V c. 400V d. 200√2 At series resonance, a. Circuit impedance is very large b. Circuit power factor is minimum c. Voltage across L or C is zero d. Circuit power factor is unity At series resonance, the voltage across L or C is. a. Equal to applied voltage b. Less than applied voltage c. Much more than applied voltage d. Equal to voltage across R An ac system supplies an apparent power of 10KVA to a circuit; the reactive power being 6KVAR. The power factor of the circuit is a. 0.8 a. 0.6 b. 0.75 C. 1
Transcribed Image Text:In figure 3, the supply voltage V is_ a. 500V b. 100V c. 200V d. 400V The voltage across LC combination in figure 5 is. a. Zero b. 1,200V c. 400V d. 200√2 At series resonance, a. Circuit impedance is very large b. Circuit power factor is minimum c. Voltage across L or C is zero d. Circuit power factor is unity At series resonance, the voltage across L or C is. a. Equal to applied voltage b. Less than applied voltage c. Much more than applied voltage d. Equal to voltage across R An ac system supplies an apparent power of 10KVA to a circuit; the reactive power being 6KVAR. The power factor of the circuit is a. 0.8 a. 0.6 b. 0.75 C. 1
L R = 2002 wwmm 100V C H 200V200V V Figure 3
Transcribed Image Text:L R = 2002 wwmm 100V C H 200V200V V Figure 3
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