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. |
1. | both circuits (a) and (c) |
2. | circuit (a) only |
3. | circuit (b) only |
4. | circuit (c) only |
1. | A | B | C | 2. | A | B | C |
0 | 0 | 0 | 0 | 0 | 0 | ||
0 | 1 | 1 | 0 | 1 | 1 | ||
1 | 0 | 0 | 1 | 0 | 1 | ||
1 | 1 | 1 | 1 | 1 | 0 | ||
3. | 0 | 0 | 1 | 4. | 0 | 0 | 1 |
0 | 1 | 0 | 0 | 1 | 0 | ||
1 | 0 | 0 | 1 | 0 | 1 | ||
1 | 1 | 1 | 1 | 1 | 0 |
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. |
1. | Zener voltage remains constant at the breakdown. |
2. | It is designed to operate under reverse bias. |
3. | The depletion region formed is very wide. |
4. | \(\mathrm{p}\) and \(\mathrm{n}\) regions of the Zener diode are heavily doped. |
1. | load resistance | 2. | a centre-tapped transformer |
3. | \(\mathrm{p\text-n}\) junction diodes | 4. | capacitor |
Statement I: | Photovoltaic devices can convert optical radiation into electricity. |
Statement II: | Zener diode is designed to operate under reverse bias in the breakdown. |
1. | Statement I is incorrect but Statement II is correct. |
2. | Both Statement I and Statement II are correct. |
3. | Both Statement I and Statement II are incorrect. |
4. | Statement I is correct but Statement II is incorrect. |