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Digital Electronics

Digital Electronics
Which number system has a base of 16

 None
 Octal
 Decimal
 Hexadecimal

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Digital Electronics
The main equation for a D flip flop is

 Q=1
 Q=0
 Q=D'
 Q=D

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Digital Electronics
What is the gray code for the binary 101011?

 111110
 011111
 110101
 101011

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Digital Electronics
Digital computers are more widely used as compared to analog computers, because they are

Easier to maintain
Always more accurate and faster
Less expensive
Useful over wider ranges of problem types

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Digital Electronics
Minimization of logical expressions while designing digital systems helps in reducing

 cost
 power requirements
All of these
 space requirements

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

 1 V and -5 V
 0 V and 5 V
 –1.5 V and – 5 V
 5 V and 0 V

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