1
MHT CET 2021 21th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

For a transitor, $$\frac{1}{\alpha_{\mathrm{DC}}}-\frac{1}{\beta_{\mathrm{DC}}}$$ is equal to [ $$\alpha_{\mathrm{DC}}$$ and $$\beta_{\mathrm{DC}}$$ are current amplification factors]

A
three
B
two
C
zero
D
one
2
MHT CET 2021 21th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

The current in the following circuit is

MHT CET 2021 21th September Morning Shift Physics - Semiconductor Devices and Logic Gates Question 132 English

A
10 A
B
zero
C
0.025 A
D
10$$^{-2}$$ A
3
MHT CET 2021 20th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

The output of an 'OR' gate is 'one'

A
only when both inputs are 'one'.
B
only when both inputs are 'zero'.
C
only when either input is 'zero'.
D
if either or both inputs are 'one'.
4
MHT CET 2021 20th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

In the case of insulators, a band gap and conduction band is respectively

A
very high empty.
B
very low, partially filled
C
very high, completely filled
D
very low, empty.
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