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Digital Electronics

Digital Electronics
If in a base b number system, 54/4=13, the base of the number is

 6
 8
 9
 7

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Digital Electronics
The momentary change in the output/state of the flip-flops is known as

 trigger
 unstable state
 inverter
 tri-state

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Digital Electronics
In an SR latch built from NOR gates, which condition is not allowed

 S=0, R=1
 S=1, R=1
 S=1, R=0
 S=0, R=0

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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
TTLAS
CMOS
ECL

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Digital Electronics
Which of the following logic circuits is the fastest ?

 TTL.
 DTL.
 All have same speed.
 RTL.

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Digital Electronics
A system has following negative numbers stored in binary form as shown. The wrongly stored number is

 -89 as 10100111
 -37 as 11011011
 -48 as 11101000
 -32 as 11100000

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