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Digital Electronics

Digital Electronics
Logic circuits are

 none of these
 digital circuits
 hybrid circuits
 analog circuits

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Digital Electronics
Which GATE IS CALLED INEQUALITY COMPARATOR?

 2. AND
 3. XOR
 4. NOT
 1. NOR

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

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

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Digital Electronics
A Nibble is equal to ________ bit(s)

 1
 4
 2
 8

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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
When will be the output of an AND gate is HIGH if there are three inputs, A, B, and C ?

 A = 1, B = 0, C = 1
 A = 1, B = 1, C = 0
 A = 0, B = 0, C = 0
 A = 1, B = 1, C = 1

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