Electromagnetism
Current Electricity
MCQ (Single Correct Answer)
Moving Charges and Magnetism
MCQ (Single Correct Answer)
Magnetism and Matter
MCQ (Single Correct Answer)
Electromagnetic Waves
MCQ (Single Correct Answer)
Electromagnetic Induction
MCQ (Single Correct Answer)
Alternating Current
MCQ (Single Correct Answer)
Modern Physics
Dual Nature of Radiation
MCQ (Single Correct Answer)
Semiconductor Devices and Logic Gates
MCQ (Single Correct Answer)
Communication Systems
MCQ (Single Correct Answer)
1
MHT CET 2024 15th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

In an extrinsic n-type semiconductor, the free electrons donated by the impurity atoms occupy energy levels in

A
the conduction band.
B
the valance band.
C
the band gap and are close to conduction band.
D
the band gap and are close to valance band.
2
MHT CET 2024 15th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

For a transistor, current gain $(\beta)=50$. To change the collector current by $350 \mu \mathrm{~A}$, the base current should be changed by

A
$\left(\frac{50}{350}\right) \mu \mathrm{A}$
B
$(350-50) \mu \mathrm{A}$
C
$(350+50) \mu \mathrm{A}$
D
$\left(\frac{350}{50}\right) \mu \mathrm{A}$
3
MHT CET 2024 11th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

When n-p-n junction transistor is used as an amplifier in common emitter mode,

A
the input impedance is high and the output impedance is low.
B
the base emitter junction is reverse biased.
C
input signal is applied between the base and emitter and output is obtained between collector and emitter.
D
the input voltage and output voltage are in phase.
4
MHT CET 2024 11th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Assuming that junction diode is ideal, the current in arrangement shown in figure

MHT CET 2024 11th May Evening Shift Physics - Semiconductor Devices and Logic Gates Question 10 English

A
2 mA
B
20 mA
C
30 mA
D
10 mA
Questions Asked from MCQ (Single Correct Answer)
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