MHT CET 2023 11th May Evening Shift | Semiconductor Devices and Logic Gates Question 19 | Physics

In the study of transistor as an amplifier if $$\alpha=\frac{I_C}{I_E}=0.98$$ and $$\beta=\frac{I_C}{I_B}=49$$, where $$I_C, I_B$$ and $$\mathrm{I}_{\mathrm{E}}$$ are collector, base and emitter current respectively then $$\left(\frac{1}{\alpha}-\frac{1}{\beta}\right)$$ is equal to

zero

$$\frac{1}{2}$$

MHT CET 2023 11th May Evening Shift

MCQ (Single Correct Answer)

-0

If $$p$$-$$n$$ junction diode is in forward bias then

width of depletion layer increases

electric conduction is not possible at all

barrier voltage increases

width of depletion layer decreases

MHT CET 2023 11th May Evening Shift

MCQ (Single Correct Answer)

-0

In the digital circuit the inputs are as shown in figure. The Boolean expression for output $$\mathrm{Y}$$ is

MHT CET 2023 11th May Evening Shift Physics - Semiconductor Devices and Logic Gates Question 48 English

$$\overline{\mathrm{A}+\mathrm{B}}+\overline{\mathrm{C}}$$

$$\overline{\mathrm{A} \cdot \mathrm{B}} \cdot \overline{\mathrm{C}}$$

$$\overline{\mathrm{A} \cdot \mathrm{B}}+\overline{\mathrm{C}}$$

$$\overline{\mathrm{A}+\mathrm{B}} \cdot \overline{\mathrm{C}}$$

MHT CET 2023 11th May Morning Shift

MCQ (Single Correct Answer)

-0

Identify the correct circuit diagrams for the normal operation from the following.

MHT CET 2023 11th May Morning Shift Physics - Semiconductor Devices and Logic Gates Question 51 English

(A), (B)

(B), (C)

(A), (C)

(B), (D)

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