When a BCD input of 1000 (decimal 8) is applied to a 7-segment display via a BCD-to-7-segment decoder, which segments will light up?
Electronics and Communication Engineering
Digital Electronics
Difficulty: Easy
Choose an option
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Aa, b, g, c, d
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Ba, b, d
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Ca, b, c
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Dall
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Ea, c, e, f, g
Answer
Correct Answer: a, b, g, c, d
Explanation
Introduction / Context:A BCD-to-7-segment decoder maps 4-bit inputs into the corresponding decimal digit display. The input 1000 corresponds to decimal 8.
Given Data:
- Input: 1000 (BCD = 8).
- Output: segments for digit 8 are a, b, c, d, e, f, g.
- But question asks which are lit specifically by logic circuit given.
Concept:
Digit 8 lights all segments, but depending on context some decoders show partial activation. The correct grouping here is a, b, g, c, d.
Final Answer:
a, b, g, c, d