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Digital Electronics

Digital Electronics
XNOR followed by a NOT gate is equivalant to ________ gate

 OR
 XNOR
 XOR
 NOR

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Digital Electronics
(1D)16 in BCD 8421 code is

 00011101
 00101001
 00011111
 00100100

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Digital Electronics
In SSI, the number of gate circuits per chip is

 < 20
 < 12
 < 6
 < 25

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Digital Electronics
When will be the output of a NOT gate is HIGH ?

None of these
 the input is LOW
 the input is HIGH
 the input is HIGH and LOW

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Digital Electronics
Which of the following is not a transmission medium?

  Modem.
 Telephone lines.
 Microwave systems.
 Coaxial cables.

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Digital Electronics
Which of these circuits will give yield carry with more delay 1. Carry look ahead adder 2. Ripple carry adder

 1.
 2.
 none
 both are same

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