MHT CET 2023 12th May Morning Shift | Semiconductor Devices and Logic Gates Question 18 | Physics

When forward bias is applied to a p-n junction, then what happens to the potential barrier $$\left(V_B\right)$$ and the width $$(\mathrm{X})$$ of the depletion region?

$$\mathrm{V}_{\mathrm{B}}$$ increase, $$\mathrm{X}$$ decreases

$$\mathrm{V}_{\mathrm{B}}$$ decreases, $$\mathrm{X}$$ increase

$$\mathrm{V}_{\mathrm{B}}$$ increase, $$\mathrm{X}$$ increase

$$\mathrm{V}_{\mathrm{B}}$$ decreases, $$\mathrm{X}$$ decreases

MHT CET 2023 11th May Evening Shift

MCQ (Single Correct Answer)

-0

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

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

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

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

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

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