68. A negative voltage feedback amplifier has voltage gain without feedback, A, = 1000 and feedback fraction m = 0.01. If the lower cutt-off frequency f₁ = 1.5 kHz and upper cut-off frequency f= 501.5 kHz before feedback, what is the value of lower cutt- off frequency after negative feedback? (1) 1.5 kHz (ii) 272.8 Hz (iii) 136.4 Hz (iv) 3 kHz 69. In Q 68, what is the value of upper cut-off frequency after negative feedback? (1) 501.5 kHz (iii) 2006 kHz (ii) 1003 kHz (iv) 5.52 MHz

68. A negative voltage feedback amplifier has voltage gain without feedback, A, = 1000 and feedback fraction m = 0.01. If the lower cutt-off frequency f₁ = 1.5 kHz and upper cut-off frequency f= 501.5 kHz before feedback, what is the value of lower cutt- off frequency after negative feedback? (1) 1.5 kHz (ii) 272.8 Hz (iii) 136.4 Hz (iv) 3 kHz 69. In Q 68, what is the value of upper cut-off frequency after negative feedback? (1) 501.5 kHz (iii) 2006 kHz (ii) 1003 kHz (iv) 5.52 MHz

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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A negative voltage feedback amplifier has voltage gain without feedback, A, = 1000 and feedback fraction m, = 0.01. If the lower cutt-off frequency f₁ = 1.5 kHz and upper cut-off frequency ₂ = 501.5 kHz before feedback, what is the value of lower cutt- off frequency after negative feedback?
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