Question: Q. 12. Distinguish between ‘Analog and Digital signals’.
U [Delhi I, II, III 2014]
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Solution:
Ans. Analog signals are continuous variations of voltage or current.
Digital signals are those which can take only discrete (step wise) values of current or voltage. 1
[CBSE Marking Scheme, 2014]
Short Answer Type Questions-1t
(3 marks each)