Electronics MCQs Question and Answer in Engineering Physics Page-5 section-1

41.
A sinusoidal input voltage V_in of frequency ω is fed to the circuit shown in the figure, where C₁ ≫ C₂. If V_m is the peak value of the input voltage, then output voltage (V_out) is

A. $$2{V_m}$$

B. $$2{V_o}\sin \omega t$$

C. $$\sqrt 2 {V_m}$$

D. $$\frac{{{V_m}}}{2}\sin \omega t$$

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42.
The low-pass active filter shown in the figure has a cut-off frequency of 2 kHz and a pass band gain of 1.5. The values of the resistors are

A. R₁ = 10 k$$\Omega $$; R₂ = 1.3 $$\Omega $$

B. R₁ = 30 k$$\Omega $$; R₂ = 1.3 $$\Omega $$

C. R₁ = 10 k$$\Omega $$; R₂ = 1.7 $$\Omega $$

D. R₁ = 30 k$$\Omega $$; R₂ = 1.7 $$\Omega $$

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43.
The largest analog output voltage from a 6-bit Digital to Analog Converter (DAC) which produces 1.0 V output for a digital input of 010100, is

A. 1.6 V

B. 2.9 V

C. 3.15 V

D. 5.0 V

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44.
Which one of the sets of values given below does not satisfy the Boolean relation R = PQ' (where, Q' denotes not Q)?

A. P = 1, Q = 1, R = 0

B. P = 1, Q = 1, R = 1

C. P = 0, Q = 0, R = 0

D. P = 0, Q = 1, R = 1

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45.
In an n-p-n transistor, the leakage current consists of

A. electrons moving from the base to the emitter

B. electrons moving from the collector to the base

C. electrons moving from the collector to the emitter

D. electrons moving from the base to the collector

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46.
A bipolar junction transistor with one junction forward biased and either the collector or emitter open, operates in the

A. cut-off region

B. saturation region

C. pinch-off region

D. active region

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47.
The circuit shown in the figure can be used as a

A. high-pass filter or a differentiator

B. low-pass filter or a differentiator

C. high-pass filter or an integrator

D. low-pass filter or an integrator

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48.
A field effect transistor is a

A. unipolar device

B. special type of bipolar junction transistor

C. unijunction device

D. device with low input impedance

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49.
In a typical n-p-n transistor, the doping concentrations in emitter, base and collector regions are C_E, C_B and C_C respectively. These satisfy the relation,

A. C_E > C_C > C_B

B. C_E > C_B > C_C

C. C_C > C_B > C_E

D. C_E = C_C > C_B

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50.
The simplest logic gate circuit corresponding to the Boolean expression, Y = P + PQ is

A. Electronics mcq question image

B. Electronics mcq question image

C. Electronics mcq question image

D. Electronics mcq question image

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Electronics MCQs Question and Answer in Engineering Physics

41. A sinusoidal input voltage Vin of frequency ω is fed to the circuit shown in the figure, where C1 ≫ C2. If Vm is the peak value of the input voltage, then output voltage (Vout) is

Answer & Solution

42. The low-pass active filter shown in the figure has a cut-off frequency of 2 kHz and a pass band gain of 1.5. The values of the resistors are

Answer & Solution

43. The largest analog output voltage from a 6-bit Digital to Analog Converter (DAC) which produces 1.0 V output for a digital input of 010100, is

Answer & Solution

44. Which one of the sets of values given below does not satisfy the Boolean relation R = PQ' (where, Q' denotes not Q)?

Answer & Solution

45. In an n-p-n transistor, the leakage current consists of

Answer & Solution

46. A bipolar junction transistor with one junction forward biased and either the collector or emitter open, operates in the

Answer & Solution

47. The circuit shown in the figure can be used as a

Answer & Solution

48. A field effect transistor is a

Answer & Solution

49. In a typical n-p-n transistor, the doping concentrations in emitter, base and collector regions are CE, CB and CC respectively. These satisfy the relation,

Answer & Solution

50. The simplest logic gate circuit corresponding to the Boolean expression, Y = P + PQ is

Answer & Solution

41.
A sinusoidal input voltage V_in of frequency ω is fed to the circuit shown in the figure, where C₁ ≫ C₂. If V_m is the peak value of the input voltage, then output voltage (V_out) is

42.
The low-pass active filter shown in the figure has a cut-off frequency of 2 kHz and a pass band gain of 1.5. The values of the resistors are

43.
The largest analog output voltage from a 6-bit Digital to Analog Converter (DAC) which produces 1.0 V output for a digital input of 010100, is

44.
Which one of the sets of values given below does not satisfy the Boolean relation R = PQ' (where, Q' denotes not Q)?

45.
In an n-p-n transistor, the leakage current consists of

46.
A bipolar junction transistor with one junction forward biased and either the collector or emitter open, operates in the

47.
The circuit shown in the figure can be used as a

48.
A field effect transistor is a

49.
In a typical n-p-n transistor, the doping concentrations in emitter, base and collector regions are C_E, C_B and C_C respectively. These satisfy the relation,

50.
The simplest logic gate circuit corresponding to the Boolean expression, Y = P + PQ is