
| A | B | X |
|---|---|---|
0 0 1 1 | 0 1 0 1 | 1 0 0 0 |
| A | B | X |
|---|---|---|
0 0 1 1 | 0 1 0 1 | 0 1 1 1 |
| A | B | X |
|---|---|---|
0 0 1 1 | 0 1 0 1 | 0 1 1 0 |
| A | B | X |
|---|---|---|
0 0 1 1 | 0 1 0 1 | 1 0 1 0 |
The given circuit consists of a combination of NOT, AND, and OR gates. The truth table is derived as follows:
1. The NOT gates invert the inputs \(A\) and \(B\).
2. These inverted values are then input into the AND gates, and the output of each AND gate is determined.
3. Finally, the outputs of the AND gates are fed into the OR gate to produce the final output \(X\).
Truth Table Analysis:
(A) When \(A = 0\) and \(B = 0\), the output \(X = 1\).
(B) When \(A = 0\) and \(B = 1\), the output \(X = 0\).
(C) When \(A = 1\) and \(B = 0\), the output \(X = 1\).
(D) When \(A = 1\) and \(B = 1\), the output \(X = 0\).
Hence, the correct truth table corresponds to Table 3.

An infinitely long straight wire carrying current $I$ is bent in a planar shape as shown in the diagram. The radius of the circular part is $r$. The magnetic field at the centre $O$ of the circular loop is :





Which of the following circuits has the same output as that of the given circuit?

Consider the following reaction sequence.

Foot of perpendicular from origin on a line passing through $(1, 1, 1)$ having direction ratios $\langle 2, 3, 4 \rangle$, is: