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Q. No.1. \(120\) Hz
2. zero
3. \(30\) Hz
4. \(60\) Hz
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology| 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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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology
1. both circuits (a) and (c)
2. circuit (a) only
3. circuit (b) only
4. circuit (c) only
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology
The truth table for the given logic circuit is:
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyTwo amplifiers of voltage gain 20 each, are cascaded in series. If 0.01 volt a.c. input signal is applied across the first amplifier, the output a.c. signal of the second amplifier in volt is:
1. 2.0
2. 4.0
3. 0.01
4. 0.20
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe output of the logic circuit shown is equivalent to a/an:
1. OR gate
2. NOR gate
3. AND gate
4. NAND gate
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe circuit represents a full wave bridge rectifier when switch \(S\) is open. The output voltage \((V_0)\) pattern across \(R_L\) when \(S\) is closed is:
| 1. |  |
2. |  |
| 3. |  |
4. |  |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe electron concentration in an n-type semiconductor is the same as hole concentration in a p-type semiconductor. An external field (electric) is applied across each of them. Compare the currents in them.
| 1. | current in n-type > current in p-type. |
| 2. | no current will flow in p-type, current will only flow in n-type. |
| 3. | current in n-type = current in p-type. |
| 4. | current in p-type > current in n-type. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyConsider the following statements (A) and (B) and identify the correct answer.
A. A zener diode is connected in reverse bias when used as a voltage regulator.
B. The potential barrier of p-n junction lies between 0.2 V to 0.3 V.
1. (A) is correct and (B) is incorrect.
2. (A) is incorrect and (B) is correct.
3. (A) and (B) both are correct.
4. (A) and (B) both are incorrect.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyFor the given circuit, the input digital signals are applied at the terminals A, B and C. What would be the output at terminal y?
| 1. |  |
| 2. |  |
| 3. |  |
| 4. |  |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologySelect Question Set:
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