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Digital Electronics

Digital Electronics
Which number system has a base of 16

 Hexadecimal
 Octal
 Decimal
 None

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Digital Electronics
When will be the output of an exclusive-OR gate is HIGH ?

 The inputs are different
 The inputs are equal
 All inputs are LOW
 All inputs are HIGH

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

 11100000
 10101111
 011100001
 00011111

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Digital Electronics
The number of Boolean functions that can be generated by n variables is equal to

2n-1
22n
2n
2n

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Digital Electronics
To get an excess-3 code from BCD code

 0011 is subtracted
 0110 is subtracted
 0110 is added
 0011 is added

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Digital Electronics
Extremely low power dissipation per gate can be gained from

 CMOS ICs
 ECL ICs
 MOS ICs
 TTL ICs

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