MHT CET 2026 13th April Evening Shift | MHT CET Year Wise Previous Years Questions

MHT CET 2026 13th April Evening Shift

MCQ (Single Correct Answer)

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A pure silicon crystal at temperature $300$ K has electron and hole concentration ($n_i$) $10^{16}$ per m$^3$ each and $10^{21}$ phosphorus atoms ($n_e$) are added per cubic metre. The new hole concentration in silicon crystal is

$10^{19}$ per m$^3$

$10^{21}$ per m$^3$

$10^5$ per m$^3$

$10^{11}$ per m$^3$

MHT CET 2026 13th April Evening Shift

MCQ (Single Correct Answer)

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If transistor having $\alpha = 0.9$, is used in CE configuration, then for a change of $0.4$ mA in base current, what will be the change in collector current?

$3.6$ mA

$4$ mA

$0.9$ mA

$36$ mA

MHT CET 2026 13th April Evening Shift

MCQ (Single Correct Answer)

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Choose the correct statement about Zener diode:

It works as a voltage regulator in reverse bias and behaves like simple pn junction diode in forward bias.

It works as a voltage regulator in both forward and reverse bias.

It works a voltage regulator only in forward bias.

It works as a voltage regulator in forward bias and behaves like simple pn junction diode in reverse bias.