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Digital Electronics

Digital Electronics
An all or nothing gate is the other name of

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

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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
 –1.5 V and – 5 V
 5 V and 0 V
 0 V and 5 V

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Digital Electronics
In which of the following codes do the successive characters differ in only 1-bit position?

 binary code
 2421 code
 8421 code
 cyclic code

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Digital Electronics
A bubbled OR gate is equivalent to a

 X-OR gate
 AND gate
 NOR gate
 NAND gate

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Digital Electronics
The number 10000 would appear just immediately after

All of these
1111 (binary)
7777 (octal)
FFFF (hex)

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Digital Electronics
When will be the output of an OR gate is LOW ?

 When any input is HIGH
 When all inputs are HIGH
 When all input is LOW
 When any input is LOW

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