Electrical Engineering : Circuits And Circuit Theory QUESTIONS AND ANSWERS :: part2 : 6 to 10
Following Electrical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :
6.In any A.C. circuit always |
| apparent power is more than actual power |
| reactive power is more than apparent power |
| actual power is more than reactive power |
| reactive power is more than actual power |
7.The power factor at resonance in R-L- C parallel circuit is |
| zero |
| 0.08 lagging |
| 0.8 leading |
| unity |
8.Power factor of the system is kept high |
| to reduce line losses |
| to maximise the utilization of the capacities of generators, lines and transformers |
| to reduce voltage regulation of the line |
| due to all above reasons |
9.In series resonant circuit, increasing inductance to its twice value and reducing capacitance to its half value |
| will change the maximum value of current at resonance |
| will change the resonance frequency |
| will change the impedance at resonance frequency |
| will increase the selectivity of the circuit |
10.Time constant of an inductive circuit |
| increases with increase of inductance and decrease of resistance |
| increases with the increase of inductance and the increase of resistance |
| increases with decrease of inductance and decrease of resistance |
| increases with decrease of inductance and increase of resistance |
More Circuits And Circuit Theory QUESTIONS AND ANSWERS available in next pages
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