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

At absolute zero temperature, pure silicon behaves as

A
non-metal
B
insulator
C
metal
D
extrinsic semiconductor
2
MHT CET 2020 16th October Morning Shift
MCQ (Single Correct Answer)
+1
-0

In common emitter amplifier, input resistance is $$1000 \Omega$$, peak value of input signal voltage is $$5 \mathrm{~mV}$$ and $$\beta=60$$. The peak value of output current is

A
$$3 \times 10^{-4} \mathrm{~A}$$
B
$$0.5 \times 10^{-4} \mathrm{~A}$$
C
$$2 \times 10^{-5} \mathrm{~A}$$
D
$$1 \times 10^{-5} \mathrm{~A}$$
3
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
4
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
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