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In which mode of operation does the 555 timer continuously generate a square wave without requiring an external trigger?
Question

In which mode of operation does the 555 timer continuously generate a square wave without requiring an external trigger?

A.

Astable mode

B.

Monostable mode

C.

Voltage-follower mode

D.

Bistable mode

Correct option is A

In the astable mode, the 555 timer operates as a free-running oscillator:

It continuously switches between HIGH and LOW states

Generates a continuous square wave

No external trigger is required

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