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Digital Electronics

Digital Electronics
In flip flop clock is present but in latch clock is

  none.
  may be present/absent.
  absent always.
  present always.

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Digital Electronics
(44)8 in BCD 8421 code is

 01100011
 00100100
 00110110
 01000100

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Digital Electronics
Which of the following logic circuits is the fastest ?

 TTL.
 RTL.
 All have same speed.
 DTL.

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Digital Electronics
When will be the output of an OR gate is LOW ?

 When all inputs are HIGH
 When any input is HIGH
 When all input is LOW
 When any input is LOW

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Digital Electronics
If clock time period is 1ms, what is its frequency

None of these
 1 kHz
 1 MHz
 1 mHz

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Digital Electronics
Which of the following operations is commutative but not associative?

 NAND
 OR
 AND
 X-OR

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