9780199339136, Chapter 1, Problem 43P

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Chapter Problem 43P Step-by-step solution Step of 7 Refer to Figure 16(b) in the text book Write the expression for gain of the voltage amplifier (1) Apply voltage division rule and determine the expression for Apply voltage division rule and determine the expression for R, R Substitute for R, and for equation (1) A, (2) Step 2 of 7 (a) Determine the overall voltage gain when 10R, and Substitute 100 V/V for 10R, for and 10R, for R1 equation (2) 10R 10R A, 100) 10R 10R (100) 11R (100) = 82.645 V/V Thus, the value of overall voltage gain is, 82.645 V/V Comments (9) Anonymous why 100 and not 10? Anonymous In Avo. why 100 and not 10? Anonymous The answer must be wrong here Anonymous Avo is given in the problem as 100v/v. the answer is correct Anonymous no not 10v/v Anonymous no right Anonymous avo is 100. u are wrong budd6 Anonymous 100v/v is used on this problem in the 7th edition This is supposed to be the solution for the 6th edition version 10v/v used in the 6th edition Anonymous The top of the page says Microelectronic Circuits (7th Edition) Step Convert the overall voltage gain into decibels A, 20(1.9172) 38.344 dB Thus, the overall voltage gain in decibels 38.344 dB Step (b) Determine the overall voltage gain when and Substitute 100 V/V for for and for R1 in equation (2) A, (100) R = (100) = (100) V/V Thus, the value of overall voltage gain is 25 V/V Step of Convert the overall voltage gain into decibels A, =27.96 dB Thus, the overall voltage gain in decibels Step (c) Determine the overall voltage gain when and 10 10 Substitute 100 V/V for for and for in equation (2). 10 10 A, 10 (100) 10 10 10 0.1R (100) =(100) A 0.8264 V/V Thus, the value of overall voltage gain is, 0.8264 V/V Step Convert the overall voltage gain into decibels Thus, the overall voltage gain in decibels is -1.656 dB