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What is the number of voltage increments that can be represented in an 8-bit system?

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What is the number of voltage increments that can be represented in an 8-bit system?

(a) 255

(b) 256

(c) 215

(d) 126

The question was posed to me in a national level competition.

The question is from Data Conversion topic in section Digital Communication Techniques of Avionics

1 Answer

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Right answer is (a) 255

For explanation: The number of voltage increments that can be in an N bit system is given by 2^N-1 = 2^8-1 =255.

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