1
JEE Main 2022 (Online) 28th July Evening Shift
+4
-1

An n.p.n transistor with current gain $$\beta=100$$ in common emitter configuration is shown in figure. The output voltage of the amplifier will be

A
0.1 V
B
1.0 V
C
10 V
D
100 V
2
JEE Main 2022 (Online) 28th July Morning Shift
+4
-1

Identify the solar cell characteristics from the following options :

A
B
C
D
3
JEE Main 2022 (Online) 27th July Evening Shift
+4
-1

For a constant collector-emitter voltage of $$8 \mathrm{~V}$$, the collector current of a transistor reached to the value of $$6 \mathrm{~mA}$$ from $$4 \mathrm{~mA}$$, whereas base current changed from $$20 \,\mu \mathrm{A}$$ to $$25 \,\mu \mathrm{A}$$ value. If transistor is in active state, small signal current gain (current amplification factor) will be :

A
240
B
400
C
0.0025
D
200
4
JEE Main 2022 (Online) 27th July Morning Shift
+4
-1

A logic gate circuit has two inputs A and B and output Y. The voltage waveforms of A, B and Y are shown below.

The logic gate circuit is :

A
AND gate
B
OR gate
C
NOR gate
D
NAND gate
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