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Digital Electronics

Digital Electronics
What is the minimum number of NOR gates required realizing an X-OR gating?

 3
 4
 6
 5

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Digital Electronics
In the toggle mode a JK flip-flop has

 J = 0, K = 1.
 J = 1, K = 1.
 J = 0, K = 0.
 J = 1, K = 0.

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Digital Electronics
The fan put of a 7400 NAND gate is

5TTL
2TTL
8TTL
10TTL

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Digital Electronics
Which of the following gates cannot be used as an inverter?

 AND
 NAND
 X-NOR
 NOR

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Digital Electronics
The voltages corresponding to LOW and HIGH levels respectively are given below. Identify the voltages which correspond to positive logic system.

 –1.5 V and – 5 V
 0 V and 5 V
 5 V and 0 V
 1 V and -5 V

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Digital Electronics
Counter is a

  both.
  none.
  sequential circuit.
  combinational circuit.

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MORE MCQ ON Digital Electronics

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