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Digital Electronics

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

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

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Digital Electronics
(1D)16 in BCD 8421 code is

 00011101
 00100100
 00101001
 00011111

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Digital Electronics
The boolean algebra is mostly based on

 De Morpans theorem
 Boolean theorem
 Standard theorem
 De Morgans theorem

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Digital Electronics
The number FF in base-16 systems will be equal to ________ in binary system.

 11111111
 10011001
 11101110
 10101010

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Digital Electronics
To add two m-bit numbers, the required number of half adder is

 2m-1
 2m-1
 2m
 2m+1

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

 0 V and 5 V
 1 V and 5 V
 5 V and 0 V
 –1.5 V and – 0.5 V

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