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How many states does a binary counter with n flip-flops have?a.nb.2nc.2^nd.n + 1

Question

How many states does a binary counter with n flip-flops have?

a. nb
c. 2^n
d. n + 1

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Solution

Break Down the Problem

  1. Identify the Key Concept: We need to determine how many states a binary counter can represent based on the number of flip-flops n n .
  2. Understanding Flip-Flops: Each flip-flop can be in one of two states (0 or 1).

Relevant Concepts

  1. Formula for States: The number of states in a binary counter with n n flip-flops is given by 2n 2^n . This is because each flip-flop adds a binary digit, doubling the number of possible combinations with each additional flip-flop.

Analysis and Detail

  1. Calculation for Different Values of n: For instance, when n=1 n = 1 , the count is 21=2 2^1 = 2 states (0 and 1); for n=2 n = 2 , it is 22=4 2^2 = 4 states (00, 01, 10, 11); and this pattern continues for higher n n .

Verify and Summarize

  1. General Verification: The formula 2n 2^n applies consistently across the binary system, confirming our approach is correct.
  2. Summarization: In conclusion, a binary counter with n n flip-flops will have 2n 2^n possible states.

Final Answer

Therefore, the answer is 2n 2^n .

This problem has been solved

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