Transistors MCQ Questions & Answers | Electrical Engineering

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Each section contains 100 MCQs on Transistors .

In the above question, what are the values of cut-off frequencies?

A) 140 kHz , 60 kHz B) 1020 kHz , 980 kHz C) 1030 kHz , 970 kHz D) None of the above

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

In a parallel LC circuit, if the signal frequency is decreased below the resonant frequency, then ___________

A) XL decreases and XC increases B) XL increases and XC decreases C) Line current becomes minimum D) None of the above

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Answer & Solution

Answer: Option A

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In parallel resonance, the circuit impedance is ___________.

A) $$\frac{{\text{C}}}{{{\text{LR}}}}$$ B) $$\frac{{\text{R}}}{{{\text{LC}}}}$$ C) $$\frac{{{\text{CR}}}}{{\text{L}}}$$ D) $$\frac{{\text{L}}}{{{\text{CR}}}}$$

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Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

Transistor biasing is generally provided by a ___________

A) Biasing circuit B) Bias battery C) Diode D) None of the above

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Answer & Solution

Answer: Option A

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The value of VBE ___________

A) Depends upon IC to moderate extent B) Is almost independent of IC C) Is strongly dependant on IC D) None of the above

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Answer & Solution

Answer: Option B

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If the value of collector current IC increases, then the value of VCE ___________

A) Remains the same B) Decreases C) Increases D) None of the above

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Answer & Solution

Answer: Option B

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If the temperature increases, the value of VCE ___________

A) Remains the same B) Is increased C) Is decreased D) None of the above

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Answer & Solution

Answer: Option C

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Frequencies above ___________ kHz are called radio frequencies

A) 2 B) 10 C) 50 D) 200

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Answer & Solution

Answer: Option D

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The phase difference between the input and output voltages in a common base arrangement is ___________

A) 180° B) 90° C) 270° D) 0°

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Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

The voltage gain of a transistor connected in common collector arrangement is ___________

A) equal to 1 B) more than 10 C) more than 100 D) less than 1

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Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

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