1
MHT CET 2020 16th October Morning Shift
MCQ (Single Correct Answer)
+1
-0

When a small amount of impurity atoms are added to a semiconductor, then generally its resistivity

A
may increase or decrease depending upon the percentage of doping
B
increases
C
decreases
D
does not change
2
MHT CET 2019 3rd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

$V-I$ characterstics of LED is shown correctly by graph

A
MHT CET 2019 3rd May Morning Shift Physics - Semiconductor Devices and Logic Gates Question 1 English Option 1
B
MHT CET 2019 3rd May Morning Shift Physics - Semiconductor Devices and Logic Gates Question 1 English Option 2
C
MHT CET 2019 3rd May Morning Shift Physics - Semiconductor Devices and Logic Gates Question 1 English Option 3
D
MHT CET 2019 3rd May Morning Shift Physics - Semiconductor Devices and Logic Gates Question 1 English Option 4
3
MHT CET 2019 3rd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Which of the following regions of a transistors are, respectively, heavily dopped and lightly dopped?

A
Collector and emitter
B
Base and emitter
C
Emitter and base
D
Emitter and collector
4
MHT CET 2019 2nd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

In case of $p$-n junction diode, the width of depletion region is

A
decreased with heavy doping
B
increased by reverse biasing
C
decreased with light doping
D
increased by forward biasing
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