1. | \(100~\Omega\) if \(V_A>V_B\) and \(200~\Omega\) if \(V_A<V_B\) |
2. | \(100~\Omega\) if \(V_A<V_B\) and \(200~\Omega\) if \(V_A>V_B\) |
3. | \(100~\Omega\) |
4. | \(200~\Omega\) |
1. | \(120\) Hz | 2. | zero |
3. | \(30\) Hz | 4. | \(60\) Hz |
1. | decreases for conductors but increases for semiconductors. |
2. | increases for both conductors and semiconductors. |
3. | decreases for both conductors and semiconductors. |
4. | increases for conductors but decreases for semiconductors. |
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The output of the logic circuit shown is equivalent to a/an:
1. \(\text{OR}\) gate
2. \(\text{NOR}\) gate
3. \(\text{AND}\) gate
4. \(\text{NAND}\) gate
The circuit represents a full wave bridge rectifier when switch \(S\) is open. The output voltage \((\text V_0)\) pattern across \(R_L\) when \(S\) is closed:
1. | |
2. | |
3. | 4. |
Assertion (A): | The value of current through \(\mathrm{p\text-n}\) junction in the given figure will be \(10~\text{mA}.\) |
Reason (R): | In the above figure, \(\mathrm{p\text-}\)side is at a higher potential than \(\mathrm{n\text-}\)side. |
1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
3. | (A) is True but (R) is False. |
4. | Both (A) and (R) are False. |
1. | \(1.5~\Omega\) | 2. | \(5~\Omega\) |
3. | \(6.67~\Omega\) | 4. | \(200~\Omega\) |
Assertion (A): | The temperature coefficient of resistance is positive for metals and negative for \(\mathrm{p\text-}\)type semiconductors. |
Reason (R): | The effective charge carriers in metals are negatively charged whereas in \(\mathrm{p\text-}\)type semiconductors, they are positively charged. |
1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
3. | (A) is True but (R) is False. |
4. | Both (A) and (R) are False. |