MHT CET 2026 11th April Morning Shift | Semiconductor Devices and Logic Gates Question 45 | Physics

In common emitter transistor amplifier, the output resistance is $500$ k$\Omega$ and the current gain $\beta = 50$. If power gain of amplifier is $5 \times 10^6$, what is the input resistance?

$325 \Omega$

$150 \Omega$

$350 \Omega$

$250 \Omega$

MHT CET 2026 11th April Morning Shift

MCQ (Single Correct Answer)

-0

When the conductivity of a semiconductor is only due to breaking of covalent bonds, the semiconductor is called

extrinsic.

intrinsic.

p-type.

n-type.

MHT CET 2025 5th May Evening Shift

MCQ (Single Correct Answer)

-0

When LED is manufactured by using aluminium gallium arsenide (AlGaAs), it emits

ultra-violet light

infra red radiation

green light

blue light

MHT CET 2025 5th May Evening Shift

MCQ (Single Correct Answer)

-0

Which of the following figure represents forward bias diode?

MHT CET 2025 5th May Evening Shift Physics - Semiconductor Devices and Logic Gates Question 47 English

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