Ac Fundamentals, Circuits & Circuit Theory Mcqs Start Creating PDF
Ac Fundamentals, Circuits & Circuit Theory Mcqs, this topic has 111 mcqs, It takes five to ten minutes to complete this free ac fundamentals, circuits & circuit theory mcqs test. You will see 4 or 5 option of each question. You must choose / think only one option and then press on answer key for check right answer. Practice "ac fundamentals, circuits & circuit theory mcqs" MCQs and share with your friends, brothers, sisters.
ac fundamentals, circuits & circuit theory mcqs (Total Quiz: 111)
MCQ: In a series L-C circuit at the resonant frequency the__________?
- current is maximum
- current is minimum
- impedance is maximum
- voltage across C is minimum
A
MCQ: 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
A
MCQ: Time constant of a capacitive circuit__________?
- increases with the decrease of capacitance and decrease of resistance
- increases with the decrease of capacitance and increase of resistance
- increases with the increase of capacitance and decrease of resistance
- increase with increase of capacitance and increase of resistance
D
MCQ: Inductance of coil___________?
- is unaffected by the supply frequency
- decreases with the increase in supply frequency
- increases with the increase in supply frequency
- becomes zero with the increase in supply frequency
C
MCQ: In a purely inductive circuit__________?
- actual power is zero
- reactive power is zero
- apparent power is zero
- none of above is zero
A
MCQ: 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 the decrease of inductance and decrease of resistance
- increases with decrease of inductance and increase of resistance
A
MCQ: Magnitude of current at resonance in R-L-C circuit________?
- depends upon the magnitude of R
- depends upon the magnitude of L
- depends upon the magnitude of C
- depends upon the magnitude of R, Land C
A
MCQ: In R-L-C series resonant circuit magnitude of resonance frequency can be changed by changing the value of__________?
- R only
- L only
- C only
- LorC
- R,LorC
D
MCQ: Pure inductive circuit takes power from the A.C. line when_________?
- applied voltage decreases but current increases
- applied voltage increases but current decreases
- both applied voltage and current increase
- both applied voltage and current decrease
A
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