Hi friends, these are some of the multiple choice questions on electrical circuits. These are some of the basic questions which are asked in previous competitive papers check out and comment...
1) If a capacitor is rated for 200 V dc, What is its effective ac Working voltage?
A) 50 V
B) 100 V
C) 200 V
D) 400 V
Ans:C
2) lf resonant frequency is 10 kHz and quality factor is 50, then
A) Bandwidth is 200 Hz
B) XL = is 50,000 Ω
C) R is 50 Ω
D) XC = is 50,000 Ω
Ans:A
3) Which statement is true?
A) A series resonant circuit is of high impedance
B) A parallel resonant circuit is of low impedance
C) A series resonant circuit is inductive if it operates at a frequency higher than the resonant frequency
D) A parallel resonant circuit is inductive if it operates at a frequency higher than the resonant frequency
Ans:C
4) What is considered as the most important value of a sine wave?
A) Effective value
B) Peak value
C) Average value
D) Instantaneous value
Ans:A
5) An ac series circuit is composed of a resistance of 20 Q, inductive reactance of 40 Q, and a capacitive reactance of 15 Q. If a current ofl ampere is flowing, What is the applied voltage
A) 320 V
B) 32 V
C) 220 V
D) 22 V
Ans:B
6) An intermittent and non-symmetrical alternating current like that obtained from the secondary winding of an induction coil
A) Faradic current
B) Transient ac current
C) Inductive current
D) Capacitive current
Ans:A
If you like my post please share it with your friends and subscribe to latest updates.. If you have doubts you can start new topic on forum and start discussion with our readers..
1) If a capacitor is rated for 200 V dc, What is its effective ac Working voltage?
A) 50 V
B) 100 V
C) 200 V
D) 400 V
Ans:C
2) lf resonant frequency is 10 kHz and quality factor is 50, then
A) Bandwidth is 200 Hz
B) XL = is 50,000 Ω
C) R is 50 Ω
D) XC = is 50,000 Ω
Ans:A
3) Which statement is true?
A) A series resonant circuit is of high impedance
B) A parallel resonant circuit is of low impedance
C) A series resonant circuit is inductive if it operates at a frequency higher than the resonant frequency
D) A parallel resonant circuit is inductive if it operates at a frequency higher than the resonant frequency
Ans:C
4) What is considered as the most important value of a sine wave?
A) Effective value
B) Peak value
C) Average value
D) Instantaneous value
Ans:A
5) An ac series circuit is composed of a resistance of 20 Q, inductive reactance of 40 Q, and a capacitive reactance of 15 Q. If a current ofl ampere is flowing, What is the applied voltage
A) 320 V
B) 32 V
C) 220 V
D) 22 V
Ans:B
6) An intermittent and non-symmetrical alternating current like that obtained from the secondary winding of an induction coil
A) Faradic current
B) Transient ac current
C) Inductive current
D) Capacitive current
Ans:A
7) The value of temperature coefficient (u) is dependent upon
A) The nature of material and temperature
B) The length of material
C) The cross-sectional area of the material
D) The volume of the material
Ans:A
8) At what frequency will the current in a series RLC circuit reach its maximum value for an applied voltage of l5 V with R = 500 Q, L = 100 pH and C = 0.001 uF?
A) 503 kHz
B) 403 kHz
C) 603 kHz
D) 303 kHz
Ans:A
9) If two equal resistances connected in series across a certain supply are now connected in parallel across the same supply, the power produced wi 11 be _ t hat of series connection
A) One-half
B) One-fourth
C) Two times
D) Four times
Ans:D
10) The voltage lags the current by 𝜋/2 cycle in a
A) Purely resistive circuit
B) Purely inductive circuit
C) Purely capactive circuit
D) Circuit containing resistance, capacitance and inductance
Ans:C
If you like my post please share it with your friends and subscribe to latest updates.. If you have doubts you can start new topic on forum and start discussion with our readers..
EmoticonEmoticon