A stereo amplifier has an input power of 0 750 W and an output power of 25 0 W What is the power gain (See Example 4 ) Data from Example 4 The power gain G in decibels (dB) of an electronic device is given by G 10 log(P 0 P i ), where P 0 is the output power (in W) and P i is the input power Determine the power gain for an amplifier for which P 0 15 8 W and P i 0 625 W Substituting the given values, we have The second line of the display in Fig 13 12 shows this evaluation on a calculator 15 8 0 625 G 10log 14 0dB

Question: A stereo amplifier has an input power of 0.750 W and an output power of 25.0 W. What is the power gain? (See Example 4.)

A stereo amplifier has an input power of 0.750 W and an output power of 25.0 W. What is the power gain? (See Example 4.)

Data from Example 4

The power gain G [in decibels (dB)] of an electronic device is given by G = 10 log(P₀/P_i), where P₀ is the output power (in W) and P_i is the input power. Determine the power gain for an amplifier for which P₀ = 15.8 W and P_i = 0.625 W. Substituting the given values, we have

15.8 0.625 G = = 10log. = 14.0dB

The second line of the display in Fig. 13.12 shows this evaluation on a calculator.

15.8 0.625 G = = 10log. = 14.0dB

Step by Step Solution

★★★★★

3.41 Rating (145 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

Using the formula given in Example 4 the power gain G of the s... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Basic Technical Mathematics Questions!

(PYTHON) Write a program that can calculate the electricalenergy used by an electrical device and its price. The program canidentify several different units of power (watts, kilowatts andhorsepower)...

What noise voltage will be generated across a 10KO resistor un der the following condition: a. T= 20C, fmin = 1MHZ, fmax = 4MHZ QUESTION 2 If a certain amplifier has an input noise power of 1uW and...

A single square-thread power screw has an input power of 3 kW at a speed of 1 rev/s. The screw has a diameter of 40 mm and a pitch of 8 mm. The frictional coefficients are 0.14 for the threads and...

In audio and communications systems, the gain, B, in decibels is defined as Where Pm is the power input to the system and Pout is the power output. A particular stereo amplifier puts out 100 W of...

1) The electric current i (in mA) in the circuit i = 3.1 (1 - e ".) where tis the time (in s). Evaluate i fort = 11.0 ms. i= mA (Round to four decimal places as needed.)The power gain G (in decibels...

1. An amptifier that operates in the linear reglon at all times is a Class A Class . e Class A. d. Class C A Class amplifier power amplifier has an output power of 5 watts for an input power of 100...

GROUP STUDY ACOUSTICS An acoustical phenomenon wherein the sound continues to persist after the cause of sound has stopped resulting in repeated reflections is calledEcho b. reverberation c....

ID Salary 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 65.1 27 36.1 61.4 46.6 73.3 39.7 23.2 74.6 22.8 23.4 62 40.7 23 24 51.1...

The "Aux" output of an audio device such as a CD player or tape recorder is specified by 500-mV peak voltage and 60-Ohm internal resistance. The figure below shows the Multisim schematic of the...

Solve the given problem by evaluating the appropriate logarithms Po The power gain G (in decibels (dB)) of an electronic device is given by G = 10 log Pi where Po is the outpower power (in W) and Pi...

What model is the central focus of the information engineering approach?

Identify at least five different internal and external users of financial statements.

City Bank issued $ 2 0 0 million of one - year CDs in the United States at a rate of 6 . 5 0 percent. It invested part of this money, $ 1 0 0 million, in the purchase of a one - year bond issued by a...

What is the main difference between organizing effects and activating effects of hormones? a. Organizing effects are long-lasting, whereas activating effects are temporary. b. Organizing effects...

Tanisha owns a wallpaper hanging business. Her charge, C, for hanging wallpaper is $40 plus $0.30 per square foot of wallpaper she hangs, or C = 40 + 0.30s, where s is the number of square feet of...

Ryan sells chocolate on the Internet. His monthly profit, p, in dollars, can be estimated by p = 15n - 300, where n is the number of dozens of chocolates he sells in a month. (a) Graph p =15n - 300,...

When $1000 is invested in a savings account paying simple interest for a year, the interest, i, in dollars, earned can be found by the formula i = 1000r, where r is the interest rate in decimal form....

Recent sales of some real estate and record promotor 1.000.000 tone for dette thening of each year to the countelemaal! a) Deewhether the po rary and ordinary any uity due () Solve the ground your to...

Required information [The following information applies to the questions displayed below.] The following data reports on the July production activities of the Molding department at Ash Company....

Oakland Precision Products (OPP) manufactures and sells a variety of scales for the kitchen and office. OPP sells primarily to kitchenware stores, discount stores, and so on. Two of the scales it...