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Q. No.
Consider the following two statements and mark the correct option.
(I) If Vi > 2 V, then Vo = Vi
(II) If Vi < 2 V, then Vo = 2 V
1. I is true.
2. II is true.
3. I and II are both true.
4. I and II are both false.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology| Statement I: | If the current through the diode increases, then the dynamic resistance decreases. |
| Statement II: | If the temperature of the diode is increased, with the potential difference fixed, the dynamic resistance decreases. |
| 1. | Statement I is incorrect and 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 and Statement II is incorrect. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe barrier potential of a \(\mathrm{p\text{-}n}\) junction depends on:
| (a) | type of semiconductor material |
| (b) | amount of doping |
| (c) | temperature |
Which one of the following is correct?
1. (a) and (b) only
2. (b) only
3. (b) and (c) only
4. (a), (b) and (c)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology| (a) |  |
| (b) |  |
| (c) |  |
| (d) |  |
1. (a), (b) and (d)
2. (c) only
3. (a) and (c)
4. (b) and (d)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe LED:
1. is reverse-biased.
2. is forward-biased.
3. can be made of \(\mathrm{GaAs}\).
4. both (2) & (3) are correct.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIn an unbiased - junction diode
1. p-type side is at higher potential than n-type side
2. p-type side is at lower potential than n-type side
3. Electric field is directed from side to side
4. Both 2 & 3
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe \((I\text-V)\) characteristics of a \(\mathrm{p\text-n}\) junction diode is as shown. If \(R_1\) and \(R_2\) be the dynamic resistance of the \(\mathrm{p\text-n}\) junction when (i) a forward bias of \(1\) volt is applied and (ii) a forward bias of \(2\) volts is applied respectively, then \(\frac{R_1}{R_2}=?\)
1. \(160\)
2. \(16\)
3. \(1.6\)
4. \(0.16\)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology
| 1. |  |
2. |  |
| 3. |  |
4. |  |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology1. oscillatory circuit
2. current amplification
3. voltage amplification
4. all of the above
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology| i. | in forward bias |
| ii. | in reverse bias |
| iii. | in parallel with the load |
| iv. | in series with the load |
| 1. | (i) and (ii) are correct |
| 2. | (ii) and (iii) are correct |
| 3. | only (i) is correct |
| 4. | only (iv) is correct |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologySelect Chapter Topics:
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