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Digital Electronics

Digital Electronics
The switch which clears a flip-flop is know as

 None
 Reset
 Clear
 Both A and B

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Digital Electronics
Which of the following BCD codes with an odd parity bit included in the end of code group, have error in the code? (I)1001010110000 (II)0100011101100 (III)0111110000011 (IV)1000011000101

 Only (II)
 Both (I) & (II)
 Both (II)&(III)
 Both (I)&(IV)

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Digital Electronics
What logic function is produced by adding inverters to the inputs of an OR gate?

 X-NOR
 NOR
 NAND
 AND

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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.

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

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Digital Electronics
Each term in the standard POS form is called a

 literal
 don’t care
 minterm
 maxterm

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Digital Electronics
What logic function is produced by adding an inverter to each input and output of an OR gate?

 NOR
 AND
 NAND
 X-OR

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