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Digital Electronics

Digital Electronics
Latches are ________ circuits.

 level triggered
 count triggered
 edge triggered
 pulse triggered

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Digital Electronics
Among the logic families, the family which can be used at very high frequency greater than 100 MHz in a 4 bit synchronous counter is

TTLLS
ECL
TTLAS
CMOS

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

 < 10,000
 > 10,000
 50,000 to 99,999
 10,000 to 99,999

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Digital Electronics
The NOR gate can function as a NOT gate if

 one input is set to 0
 inputs are left open
 one input is set to 1
 all inputs are connected together

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Digital Electronics
Consider the following multiplication: (10w1z) × (15)10 = (y01011001)2 Which one of the following gives appropriate values of w,y and z?

 w = 1,y = 1,z = 0
 w = 0,y = 0,z = 1
 w = 1,y = 1,z = 1
 w = 0,y = 1,z = 1

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Digital Electronics
In Boolean algebra A.A is equal to

 2A
 A
 A²
 1

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