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1
MHT CET 2025 20th April Morning Shift
MCQ (Single Correct Answer)
+1
-0

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

A
the base emitter junction is reverse biased.
B
the input impedance is high and the output impedance is low.
C
input signal is applied between the base and emitter and the output is obtained between collector and emitter.
D
the input voltage and the output voltage are in phase.
2
MHT CET 2025 20th April Morning Shift
MCQ (Single Correct Answer)
+1
-0

In a transistor (common emitter configuration) the ratio of power gain to voltage gain is ( $\alpha$ and $\beta$ are current ratios)

A
$\frac{\beta}{\alpha}$
B
$\alpha \beta$
C
$\alpha$
D
$\beta$
3
MHT CET 2025 19th April Evening Shift
MCQ (Single Correct Answer)
+1
-0

In a given logic circuit, the output Y when all the three inputs $\mathrm{A}, \mathrm{B}, \mathrm{C}$ are first low and then high will be respectively

MHT CET 2025 19th April Evening Shift Physics - Semiconductor Devices and Logic Gates Question 11 English
A
$(0,0)$
B
$(0,1)$
C
$(1,0)$
D
$(1,1)$
4
MHT CET 2025 19th April Evening Shift
MCQ (Single Correct Answer)
+1
-0

In unbiased p-n junction diode

A
the potential is same everywhere.
B
there is an electric field at the junction directed from the p -type side to the n -type side.
C
there is an electric field at the junction directed from the $n$-type side to $p$-type side.
D
the p-type side is at higher potential than the n-type side.
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Ray Optics Wave Optics
Electromagnetism
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Periodic Table and Periodicity Chemical Bonding and Molecular Structure Metallurgy Hydrogen and It's Compounds s-Block Elements p-Block Elements d and f Block Elements Coordination Compounds Environmental Chemistry
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Functions Limits, Continuity and Differentiability Differentiation Application of Derivatives Indefinite Integration Definite Integration Area Under The Curves Differential Equations
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Straight Lines and Pair of Straight Lines Circle Parabola Ellipse Hyperbola
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