The figure shows a logic circuit with two inputs \(A\) and \(B\) and the output \(C\). The voltage waveforms across \(A\), \(B\), and \(C\) are as given. The logic circuit gate is:
1. \(\text{OR}\) gate
2. \(\text{NOR}\) gate
3. \(\text{AND}\) gate
4. \(\text{NAND}\) gate
The circuit is equivalent to:
1. AND gate
2. NAND gate
3. NOR gate
4. OR gate
In the following circuit, the output \(Y\) for all possible inputs \(A\) and \(B\) is expressed by the truth table:
1. | A | B | Y | 2. | A | B | Y |
0 | 0 | 0 | 0 | 0 | 1 | ||
0 | 1 | 0 | 0 | 1 | 1 | ||
1 | 0 | 0 | 1 | 0 | 1 | ||
1 | 1 | 1 | 1 | 1 | 0 | ||
3. | 0 | 0 | 1 | 4. | 0 | 0 | 0 |
0 | 1 | 0 | 0 | 1 | 1 | ||
1 | 0 | 0 | 1 | 0 | 1 | ||
1 | 1 | 1 | 1 | 1 | 1 |
1. | in the case of \(C\), the valence band is not completely filled at absolute zero temperature. |
2. | in the case of \(C\), the conduction band is partly filled even at absolute zero temperature. |
3. | the four bonding electrons in the case of \(C\) lie in the second orbit, whereas in the case of \(Si\), they lie in the third. |
4. | the four bonding electrons in the case of \(C\) lie in the third orbit, whereas for \(Si\), they lie in the fourth orbit. |
To get output \(Y=1\) for the following circuit, the correct choice for the input is:
1. | \(A=1,~ B= 0, ~C=0\) |
2. | \(A=1,~ B= 1, ~C=0\) |
3. | \(A=1,~ B= 0, ~C=1\) |
4. | \(A=0,~ B= 1, ~C=0\) |
The given electrical network is equivalent to:
1. | \(\text{OR}\) gate | 2. | \(\text{NOR}\) gate |
3. | \(\text{NOT}\) gate | 4. | \(\text{AND}\) gate |
Zener breakdown will occur if:
1. impurity level is low.
2. impurity level is high.
3. impurity is less on the \(\mathrm{n\text-}\)side.
4. impurity is less on the \(\mathrm{p\text-}\)side.
The logic behind the 'NOR' gate is that it gives:
1. | High output when both the inputs are low. |
2. | Low output when both the inputs are low. |
3. | High output when both the inputs are high. |
4. | None of these |
In a transistor circuit shown here, the base current is
1. 128.5 k
2. 257 k
3. 380.05 k
4. None of these