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Digital Electronics

Digital Electronics
In which of the following base systems is 123 not a valid number?

Base 16
Base 8
Base 10
Base 3

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Digital Electronics
All the integers and decimal numbers are represented by

 odd numbers
 real numbers
 even numbers
 whole numbers

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Digital Electronics
If J = K (J and K are shorted) in a JK flip-flop, what circuit is made

 K flip-flop
 T flip-flop
 Shorted JK flip-flop
 SR flip-flop

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Digital Electronics
The output of a logic gate is 1 when all its inputs are at logic 1. The gate is either

 an AND or a NOR
 an AND or an OR
 an OR or an X-OR
 a NAND or a NOR

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Digital Electronics
An AND gate will function as OR if

All the inputs to the gates are “1”
Either of the inputs is “1”
All the inputs are ‘0’
All the inputs and outputs are complemente'

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Digital Electronics
The 1’s complement of 11010111 is

 11101000
 00101000
 10101000
 10101000

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