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Digital Electronics

Digital Electronics
8421 code is

 non-weighted code
 self-complementing code
 alphanumeric code
 weighted code

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Digital Electronics
The state of a flip-flop can be switched by changing its ________ signals.

 triggering
 output
 clearing
 input

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Digital Electronics
The set of which logic gates is designated as universal gate?

 XNOR, NOR, NAND.
 NOT, OR , AND.
 XNOR, NOR, NAND.
  NOR , NAND.

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

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

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Digital Electronics
The number of digit 1 present in the binary representation of (3 × 512 + 7 × 64 + 5 × 8 + 3) is

 9
 7
 6
 8

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Digital Electronics
The X-OR and X-NOR gates can have how many inputs?

 2
 any number
 1
 4

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