Exercise :: Digital Electronics - Section 2
- Digital Electronics - Section 1
- Digital Electronics - Section 2
- Digital Electronics - Section 3
- Digital Electronics - Section 4
- Digital Electronics - Section 5
- Digital Electronics - Section 6
- Digital Electronics - Section 7
- Digital Electronics - Section 8
- Digital Electronics - Section 9
- Digital Electronics - Section 10
- Digital Electronics - Section 11
- Digital Electronics - Section 12
- Digital Electronics - Section 13
- Digital Electronics - Section 14
- Digital Electronics - Section 15
- Digital Electronics - Section 16
- Digital Electronics - Section 17
- Digital Electronics - Section 18
- Digital Electronics - Section 19
- Digital Electronics - Section 20
- Digital Electronics - Section 21
- Digital Electronics - Section 22
- Digital Electronics - Section 23
- Digital Electronics - Section 24
| 1. | Assertion (A): A demultiplexer can be used as a decoder. Reason (R): A demultiplexer can be built by using AND gates only. |
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Answer: Option C Explanation: Demultiplexer requires NOT gates also in addition to AND gates. |
| 2. | Assertion (A): The output of a NOR gate is equal to the complement of OR of input variables. Reason (R): A XOR gate is a universal gate. |
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Answer: Option C Explanation: XOR gate is not a universal gate. |
| 3. | The number of bits in ASCII is |
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Answer: Option D Explanation: ASCII is a 7 bit code. |
| 4. | 4 bit 2's complement representation of a decimal number is 1000. The number is |
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Answer: Option D Explanation: (a) and (d) both are option, But there is meaning to represent a positive number in 2's complement form, we take complement representation for negative number only. Therefore most appropriate number is "-8". |
| 5. | In a D latch |
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Answer: Option A Explanation:
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