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)



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