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Given that the feedback factor of an astable multivibrator is 0.3, find the frequency of the output.(a) 22Hz(b) 20kHz(c) 20Hz(d) 40HzI have been asked this question by my college director while I was bunking the class.I'd like to ask this question from Different Types of Multivibrators in division Multivibrators of Analog Circuits

Answer» CORRECT answer is (c) 20HZ

Easiest explanation: TO = 2RCln (1 + β/1-β) = 2RCln(1.3/0.7) = 2x10x4x10^-3x0.619 = 49.52ms

f = 1/TO = 20Hz.


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