Analog Electronics MCQ Questions & Answers

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Learn Analog Electronics MCQ questions & answers are available for a Electronics and Communications Engineering(ECE) students to clear GATE exams, various technical interview, competitive examination, and another entrance exam. Analog Electronics MCQ question is the important chapter for a Electronics and Communications Engineering(ECE) and GATE students. Page-10 section-3

Each section contains 100 MCQs on Analog Electronics .

Input resistance of inverting amplifier as shown in figure with ideal op-amp is:
Analog Electronics mcq question image

A) ∞ B) zero C) 1 kΩ D) 10 kΩ

Discuss

Answer & Solution

Answer: Option C

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

In an op-amp, if the feedback voltage is reduced by connecting a voltage divider at the output, which of the following will happen?
1. Input impedance increases
2. Output impedance reduces
3. Overall gain increases

A) 1 only B) 2 only C) 3 only D) 1, 2 and 3

Discuss

Answer & Solution

Answer: Option C

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

The reason for using a precision OPAMP based rectifier diode for detecting weak AM signals is that

A) the demodulation is easy B) the signal is amplified and power is less C) the noise is less and easy to filter D) the cut-in voltage of the diode is reduced

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Answer & Solution

Answer: Option D

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

Negative feedback amplifier is a . . . . . . . .

A) Degenerative feedback B) Regenerative feedback C) Both A and B D) None

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Answer & Solution

Answer: Option A

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

In the amplifier circuit shown in the figure, the values of R₁ and R₂ are such that the transistor is operating at V_CE = 3 V and I_C = 1.5 mA when its β is 150. For a transistor with β of 200, the operating point (V_CE, I_C) is
Analog Electronics mcq question image

A) (2 V, 2 mA) B) (3 V, 2 mA) C) (4 V, 2 mA) D) (4 V, 1 mA)

Discuss

Answer & Solution

Answer: Option A

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

In the break region of clipping circuit, a diode behaves as

A) fully on B) it is difficult to decide C) fully off D) neither fully on nor fully off

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Answer & Solution

Answer: Option D

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One of effect of negative feedback in amplifier is to

A) Decrease the harmonic distortion B) Increase the harmonic distortion C) Decrease the bandwidth D) Increase the noise

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Answer & Solution

Answer: Option A

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Output characteristics of a BJT amplifier is given. Find the minimum collector current required for r₀ = 50 kΩ. (r₀ is output resistance)
Analog Electronics mcq question image

A) 1 mA B) 5 mA C) 10 mA D) 100 mA

Discuss

Answer & Solution

Answer: Option A

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

An N-Channel JFET has I_DSS = 8 mA and V_p = -5 V. The minimum value of V_DS for pinch-off region and the drain current I_DS for a V_GS = -2V are.

A) 3 V and 2.88 mA B) -5 V and 1.88 mA C) -2V and 3.12 mA D) -7 V and 1.98 mA

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Answer & Solution

Answer: Option A

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100

From measurement of the rise time of the output pulse of an amplifier whose input is a small amplitude square wave, one can estimate the following parameter of the amplifier.

A) Gain-bandwidth product B) Upper-3-dB frequency C) Lower-3-dB frequency D) Slew-Rate

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Answer & Solution

Answer: Option B

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Analog Electronics MCQ Questions & Answers | ECE