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Digital Electronics

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

 3
 1
 2
 4

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Digital Electronics
(11011) 2 in BCD 8421 code is

 00011011
 11011001
 00100111
 01101100

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Digital Electronics
If 4 input MUXes drive a 4 input multiplexer, it results a

 4 input MUX
 8 input MUX
 16 input MUX
 6 input MUX

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Digital Electronics
The binary code of (21.125)10 is

10101.01
10100.111
10100.001
10101.001

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Digital Electronics
When will be the output of a NOT gate is HIGH ?

 the input is LOW
 the input is HIGH and LOW
 the input is HIGH
None of these

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Digital Electronics
The maximum positive and negative numbers that can be represented in one’s complement using n-bits are respectively

 +2n-1,-(2n-1-1)
 +(2n-1-1),-(2n-1-1)
 None of these
 +(2n-1-1),-2n-1

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