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) The mutual inductance between two coils is the reluctance of magnetic path.
A) Directly proportional to
B) Inversely proportional to
C) Independent to
D) Equal to
Ans:B
2) The result of rust in electrical (wire) connection is
A) Inductance
B) Conductance
C) Impedance
D) Resistance
Ans:D
3) Which of the following is a disadvantage of a wire-wound resistor?
A) It has reactance in radio-frequency circuits
B) It cannot handle much power
C) It draws a large amount of current
D) It cannot handle high voltage
Ans:A
4) The resistance of an insulator when its temperature is increased.
A) Decreases
B) Remains the same
C) Increases
D) Varies
Ans:A
5) The wavelength of an alternating waveform depends upon the ........... of the variation.
A) Period
B) Number
C) Frequency
D) Amplitude
Ans:C
6) Delta to wye or wye to delta transformation technique is applied to a ............... network.
A) One-terminal
B) Two-terminal
C) Three-terminal
D) Complex
Ans:C
7) For greater accuracy, the value of phase angle 9 should be determined from
A) Cos 𝚹
B) Tan 𝚹
C) Sin 𝚹
D) Sec 𝚹
Ans:B
8) Inductive reactance applies only to sine waves because it
A) Increases with lower frequencies
B) Increases with lower inductance
C) Depends on factor of 2 π
D) Decreases with higher frequencies
Ans:C
9) What increases the resistance of wire at high frequencies?
A) Temperature
B) Voltage
C) Skin effect
D) Insulation
Ans:C
10) An inductor carries 2 A dc. If its inductance is 100 pH, then what is its inductive reactance?
A) Zero
B) 1.3 kΩ
C) 628 Ω
D) -628 Ω
Ans:A
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1) The mutual inductance between two coils is the reluctance of magnetic path.
A) Directly proportional to
B) Inversely proportional to
C) Independent to
D) Equal to
Ans:B
2) The result of rust in electrical (wire) connection is
A) Inductance
B) Conductance
C) Impedance
D) Resistance
Ans:D
3) Which of the following is a disadvantage of a wire-wound resistor?
A) It has reactance in radio-frequency circuits
B) It cannot handle much power
C) It draws a large amount of current
D) It cannot handle high voltage
Ans:A
4) The resistance of an insulator when its temperature is increased.
A) Decreases
B) Remains the same
C) Increases
D) Varies
Ans:A
5) The wavelength of an alternating waveform depends upon the ........... of the variation.
A) Period
B) Number
C) Frequency
D) Amplitude
Ans:C
6) Delta to wye or wye to delta transformation technique is applied to a ............... network.
A) One-terminal
B) Two-terminal
C) Three-terminal
D) Complex
Ans:C
7) For greater accuracy, the value of phase angle 9 should be determined from
A) Cos 𝚹
B) Tan 𝚹
C) Sin 𝚹
D) Sec 𝚹
Ans:B
8) Inductive reactance applies only to sine waves because it
A) Increases with lower frequencies
B) Increases with lower inductance
C) Depends on factor of 2 π
D) Decreases with higher frequencies
Ans:C
9) What increases the resistance of wire at high frequencies?
A) Temperature
B) Voltage
C) Skin effect
D) Insulation
Ans:C
10) An inductor carries 2 A dc. If its inductance is 100 pH, then what is its inductive reactance?
A) Zero
B) 1.3 kΩ
C) 628 Ω
D) -628 Ω
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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