1
WB JEE 2024
+2
-0.5

In the given network of AND and OR gates, output Q can be written as (assuming n even)

A
$$\mathrm{X}_0 \mathrm{X}_1+\mathrm{X}_2 \mathrm{X}_3+\ldots \mathrm{X}_{\mathrm{n}-1} \mathrm{X}_{\mathrm{n}}$$
B
$$\mathrm{X}_0 \mathrm{X}_1 \ldots \mathrm{X}_{\mathrm{n}}+\mathrm{X}_1 \mathrm{X}_2 \ldots \mathrm{X}_{\mathrm{n}}+\mathrm{X}_2 \mathrm{X}_3 \ldots \mathrm{X}_{\mathrm{n}}+\mathrm{X}_{\mathrm{n}}$$
C
$$\mathrm{X}_0 \mathrm{X}_1 \ldots \mathrm{X}_{\mathrm{n}-1}+\mathrm{X}_{\mathrm{n}-2} \mathrm{X}_{\mathrm{n}-1}+\mathrm{X}_{\mathrm{n}}$$
D
$$\mathrm{X}_0 \mathrm{X}_1 \ldots \mathrm{X}_{\mathrm{n}-1}+\mathrm{X}_2 \mathrm{X}_3 \mathrm{X}_5 \ldots \mathrm{X}_{\mathrm{n}-1}+\mathrm{X}_{\mathrm{n}-2} \mathrm{X}_{\mathrm{n}-1}+\mathrm{X}_{\mathrm{n}}$$
2
WB JEE 2023
+1
-0.25

In the given circuit, find the voltage drop $$\mathrm{V_L}$$ in the load resistance $$\mathrm{R_L}$$.

A
5 V
B
3 V
C
9 V
D
6 V
3
WB JEE 2023
+1
-0.25

Consider the logic circuit with inputs A, B, C and output Y. How many combinations of A, B and C gives the output Y = 0 ?

A
8
B
5
C
7
D
1
4
WB JEE 2022
+1
-0.25

A Zener diode having break down voltage Vz = 6V is used in a voltage regulator circuit as shown in the figure. The minimum current required to pass through the Zener to act as a voltage regulator is 10 mA and maximum allowed current through Zener is 40 mA. The maximum value of Rs for Zener to act as a voltage regulator is

A
100 $$\Omega$$
B
400 $$\Omega$$
C
0.4 $$\Omega$$
D
950 $$\Omega$$
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