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Digital Electronics

Digital Electronics
8421 code is

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

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

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

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Digital Electronics
F’s complement of (2BFD)Hex is

 C403
 D402
 E304
 D403

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Digital Electronics
A multiplexer is a combinational logic circuit used to perform the operation

 AND-AND
 XOR-NAND
 NOR-OR
 AND-OR

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

 triggering
 input
 clearing
 output

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Digital Electronics
The output of a logic gate is 1 when all its inputs are at logic 0. The gate is either

 an OR or a NAND
 a NAND or a NOR
 an AND or an X-NOR
 an X-OR or an X-NOR

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