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Which of the following are the basic elements in a 555 timer IC? (a) Two comparators (b) A flip-flop (c) A discharge transistor (d) A resistive voltage divider 

A) (a), (b) and (d) B) only (a), (b) and (c) C) only (b), (c) and (d) D) only (a), (b), (c) and (d)

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Which of the following are the basic elements in a 555 timer IC? (a) Two comparators (b) A flip-flop (c) A discharge transistor (d) A resistive voltage divider 

A) (a), (b) and (d) B) only (a), (b) and (c) C) only (b), (c) and (d) D) only (a), (b), (c) and (d)

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