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Digital Electronics

Digital Electronics
What is the Boolean expression for a two-input AND gate ?

 A + B
 A - B
 A & B
 A.B

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Digital Electronics
When two n-bit binary numbers are added then the sum will contain at most

 (n + 1)-bit
 (n + 2)-bit
 n-bit
 (n + n)-bit

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

 5 V and 0 V
 0 V and 5 V
 –1.5 V and – 0.5 V
 1 V and 5 V

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Digital Electronics
A multiplexer is a

 1-to-1 device
 N-to-N device
 N-to-1 device
 1-to-N device

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Digital Electronics
An any or all gate is the other name of

 X-OR gate
 X-NOR gate
 OR gate
 AND gate

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Digital Electronics
When an input signal 1 is applied to a NOT gate, the output is ___________.

Either 0 & 1
1
None of these

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