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Flip-Flops - Technical MCQs

Q1:

A 555 operating as a monostable multivibrator has a C1 = 100 F. Determine R1 for a pulse width of 500 ms.

A 45

B
455

C
4.5 k

D
455 k

ANS:C -

4.5 k

Pulse width(w) = 1.1*RC
Given that W = 500*10^-3
C=100*10^-3
From formula R=4.5K