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Digital Electronics

Digital Electronics
How many bits are required to store one BCD digit ?

 3
 1
 2
 4

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

 1000 to 10,000
 < 10,000
 100 to 999
 100 to 9,999

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

 All have same speed.
 TTL.
 DTL.
 RTL.

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Digital Electronics
The decimal number 0.246 in binary is

 0.001111
 0.010111
 0.011011
 0.001101

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Digital Electronics
The voltage levels for positive logic system

 must necessarily be 0 V and 5 V
 must necessarily be positive
 must necessarily be negative
 may be positive or negative

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

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

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