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) Which of the following has negative temperature coefficient?
A) Carbon
B) Nickel
C) Brass
D) Constantan
Ans:A
2) Which of the following is a common material used in wire-wound resistors?
A) Manganin
B) Carbon
C) Bronze
D) German silver wire
Ans:A
3) If one resistance in a series connection is open, then
A) The current is zero in all the other resistances
B) The current is maximum in all the other resistances
C) The voltage is zero across the open resistance
D) The voltage is infinite across the open resistance
Ans:A
4) What determines the magnitude of electric current?
A) The rate at which electrons are produced
B) The type of material used
C) The current carrying capacity of the circuit
D) The rate at which electrons pass a given point
Ans:D
5) For a carbon composition resistor, typical resistance values range from
A) 2.7Ω to 22 ㏁
B) l000 Ω to 10000 Ω
C) l0 Ω to1O ㏁
D) 2.7 Ω to 2.7 GΩ
Ans:A
6) A lead conductor has a resistance of 25 Ω at 0 ℃. Determine its resistance at -30℃
A) 22 Ω
B) 24 Ω
C) 12 Ω
D) 11 Ω
Ans:A
7) An impedance given by 90∠-45° is a/an ..................... impedance.
A) Inductive
B) Conductive
C) Resistive
D) Capacitive
Ans:D
8) If a coil has a Q of 10, it means that
A) The energy stored in magnetic field of the coil is 10 times the energy wasted in its resistance
B) The energy wasted in its resistance is 10 times the energy stored in the magnetic field of the coil
C) It is a low Q coil
D) It is a high Q coil
Ans:A
9) What is the rms value of a square wave?
A) Equals its peak value
B) Equals its peak-to-peak value
C) Peak divided by square root of two
D) Peak divided by pi
Ans:A
10) The rms value of a triangular or sawtooth waveform is .............. times its peak value.
A) 0.577
B) 0.500
C) 0.25
D) 0.707
Ans:A
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1) Which of the following has negative temperature coefficient?
A) Carbon
B) Nickel
C) Brass
D) Constantan
Ans:A
2) Which of the following is a common material used in wire-wound resistors?
A) Manganin
B) Carbon
C) Bronze
D) German silver wire
Ans:A
3) If one resistance in a series connection is open, then
A) The current is zero in all the other resistances
B) The current is maximum in all the other resistances
C) The voltage is zero across the open resistance
D) The voltage is infinite across the open resistance
Ans:A
4) What determines the magnitude of electric current?
A) The rate at which electrons are produced
B) The type of material used
C) The current carrying capacity of the circuit
D) The rate at which electrons pass a given point
Ans:D
5) For a carbon composition resistor, typical resistance values range from
A) 2.7Ω to 22 ㏁
B) l000 Ω to 10000 Ω
C) l0 Ω to1O ㏁
D) 2.7 Ω to 2.7 GΩ
Ans:A
6) A lead conductor has a resistance of 25 Ω at 0 ℃. Determine its resistance at -30℃
A) 22 Ω
B) 24 Ω
C) 12 Ω
D) 11 Ω
Ans:A
7) An impedance given by 90∠-45° is a/an ..................... impedance.
A) Inductive
B) Conductive
C) Resistive
D) Capacitive
Ans:D
8) If a coil has a Q of 10, it means that
A) The energy stored in magnetic field of the coil is 10 times the energy wasted in its resistance
B) The energy wasted in its resistance is 10 times the energy stored in the magnetic field of the coil
C) It is a low Q coil
D) It is a high Q coil
Ans:A
9) What is the rms value of a square wave?
A) Equals its peak value
B) Equals its peak-to-peak value
C) Peak divided by square root of two
D) Peak divided by pi
Ans:A
10) The rms value of a triangular or sawtooth waveform is .............. times its peak value.
A) 0.577
B) 0.500
C) 0.25
D) 0.707
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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