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Digital Electronics Counters

A ring counter is commonly formed by?

AConnecting the complemented output permanently to ground
BFeeding the last flip-flop output back to the first flip-flop input
CRemoving the clock from every flip-flop
DConnecting all outputs directly together

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Correct Answer: B. Feeding the last flip-flop output back to the first flip-flop input

Explanation: A basic ring counter is a shift register in which the output of the last stage is fed back to the input of the first stage.

Reference: Standard digital electronics: ring counters

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