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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
 011100001
 11100000
 00011111

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Digital Electronics
In the boolean algebra, a variable has ________ different state(s)/value(s).

 4
 2
 1
 3

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Digital Electronics
A three-state buffer has the following output states

 1, 0, float
 Both A and B
 Set, Reset, Halt
 High, Low, Float

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Digital Electronics
The decimal equivalent of hexadecimal number “BEED” is

 48,877
 48,777
 47,877
 none

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Digital Electronics
A group of four bits is known as

 Byte
 Nibble
 Bit
 Word

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Digital Electronics
When will be the output of an OR gate is LOW ?

 When all input is LOW
 When any input is HIGH
 When all inputs are HIGH
 When any input is LOW

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