1
MHT CET 2021 24th September Morning Shift
MCQ (Single Correct Answer)
+1
-0
Two identical ideal diodes are connected to an ammeter and a d.c source (1 volt) as shown. In which one of the following circuits, ammeter will not show any deflection?
2
MHT CET 2021 23rd September Evening Shift
MCQ (Single Correct Answer)
+1
-0
When the temperature of a semiconductor is increased, its resistance and electric conductivity respectively.
3
MHT CET 2021 23rd September Evening Shift
MCQ (Single Correct Answer)
+1
-0
For a two input AND gate, the four entries are shown in the truth table. Identify the correct ones out of these $$(\mathrm{A}, \mathrm{B}=$$ input, $$\mathrm{Y}=$$ output)
| Entry | A | B | Y |
|---|---|---|---|
| 1 | 0 | 1 | 0 |
| 2 | 1 | 0 | 0 |
| 3 | 1 | 1 | 1 |
| 4 | 0 | 0 | 1 |
4
MHT CET 2021 23rd September Evening Shift
MCQ (Single Correct Answer)
+1
-0
In a CE transistor, a change of $$8.0 \mathrm{~mA}$$ in the emitter current produces a change of $$7.8 \mathrm{~mA}$$ in the collector current. What change in the base current is necessary to produce the same change in the collector current?
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