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Digital Electronics

Digital Electronics
The number A = 01110000 and B = 10101111 are in 2’s complement form .Addition of above two number is

 10101111
 11100000
 00011111
 011100001

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Digital Electronics
The fan put of a 7400 NAND gate is

10TTL
5TTL
2TTL
8TTL

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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.

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

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Digital Electronics
An 8 × 4 ROM contains a decoder of size

 3 × 4
 3 × 8
 8 × 8
 8 × 4

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Digital Electronics
NOT gates are to be added to the inputs of which gate to convert it to a NAND gate?

 X-OR
 AND
 NOT
 OR

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Digital Electronics
Which is the correct order of sequence for representing the input values in K-map?

(00, 01, 11, 10)
(00, 10, 11, 01)
(00, 01, 10, 11)
(00, 10, 01, 11)

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