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) A trigger circuit consisting of a capacitor of 0.01 pl: is connected in series with a resistor. If the circuit requires 100 Vdc to operate, determine the value of the resistor when time constant is 0.009s.
A) 900 Ω
B) 900 kΩ
C) 900 MΩ
D) 900 GΩ
Ans:B
2) The graph between an alternating quantity and time is called
A) Sine wave
B) Curve
C) Waveform
D) A plot
Ans:C
3) Which of the following is the most popular waveform?
A) Sinusoidal
B) Square wave
C) Triangular
D) Sawtooth
Ans:A
4) Which of the following does not refer to electrical energy?
A) Volt-ampere
B) Joule
C) Watt-second
D) Volt-coulomb
Ans:A
5) What is the resonant frequency of a circuit when L of 25 micro henrys and C of 10 picofarads are in parallel?
A) 10.1 kHz
B) 10.1 MHz
C) l0l MHZ
D) l0l kHz
Ans:B
6) An ideal current source has an internal conductance of ................siemen(s)
A) Infinite
B) One
C) Zero
D) One million
Ans:C
7) A capacitance of 6 µµF means
A) 6 pF
B) 6 nF
C) 6 fF
D) 6 aF
Ans:A
8) The voltage cannot be exactly in phase with the current in a circuit that contains
A) Only capacitance
B) Only resistance
C) Inductance and capacitance
D) Inductance, capacitance and resistance
Ans:A
9) The charge in the capacitor is stored at the
A) Terminals
B) Plates
C) Dielectric
D) Air
Ans:B
10) The reactance curve is a plot of frequency versus ............... for a series RLC circuit
A) Current
B) Voltage
C) Gain
D) Impedance
Ans:A
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1) A trigger circuit consisting of a capacitor of 0.01 pl: is connected in series with a resistor. If the circuit requires 100 Vdc to operate, determine the value of the resistor when time constant is 0.009s.
A) 900 Ω
B) 900 kΩ
C) 900 MΩ
D) 900 GΩ
Ans:B
2) The graph between an alternating quantity and time is called
A) Sine wave
B) Curve
C) Waveform
D) A plot
Ans:C
3) Which of the following is the most popular waveform?
A) Sinusoidal
B) Square wave
C) Triangular
D) Sawtooth
Ans:A
4) Which of the following does not refer to electrical energy?
A) Volt-ampere
B) Joule
C) Watt-second
D) Volt-coulomb
Ans:A
5) What is the resonant frequency of a circuit when L of 25 micro henrys and C of 10 picofarads are in parallel?
A) 10.1 kHz
B) 10.1 MHz
C) l0l MHZ
D) l0l kHz
Ans:B
6) An ideal current source has an internal conductance of ................siemen(s)
A) Infinite
B) One
C) Zero
D) One million
Ans:C
7) A capacitance of 6 µµF means
A) 6 pF
B) 6 nF
C) 6 fF
D) 6 aF
Ans:A
8) The voltage cannot be exactly in phase with the current in a circuit that contains
A) Only capacitance
B) Only resistance
C) Inductance and capacitance
D) Inductance, capacitance and resistance
Ans:A
9) The charge in the capacitor is stored at the
A) Terminals
B) Plates
C) Dielectric
D) Air
Ans:B
10) The reactance curve is a plot of frequency versus ............... for a series RLC circuit
A) Current
B) Voltage
C) Gain
D) Impedance
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..
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