How does an amplifier work, physics, Basic Statistics

Expertsmind.com brings you unique solution in physics

An audio amplifier setup will have a power amplifier and usually a preamplifier. 

The preamplifier takes the weak signal from an input device, for example a microphone, and increases its voltage level so that the power amplifier can use it. 

Some preamplifiers simply switch inputs without changing the signal.

The power amplifier increases the current of the signal so that it can drive the speakers.

If the signal is amplified too much, it becomes distorted and it may need to be filtered through an equalizer before going to the speakers.

Posted Date: 2/11/2012 11:42:02 PM | Location : United States







Related Discussions:- How does an amplifier work, physics, Assignment Help, Ask Question on How does an amplifier work, physics, Get Answer, Expert's Help, How does an amplifier work, physics Discussions

Write discussion on How does an amplifier work, physics
Your posts are moderated
Related Questions
I have 6 questions for my Accounting class that I need help with. I only have two hours to complete them. I am trying to get an idea of what I can expect to pay for help with the a

When do you think the conversion process should start? Manager 1 : The conversion process from GAAP to IFRS will be a big challenge. There are a lot of differences between the

1. Stock A and B have the following probability distributions: ECONONOMY                    PROBABILITY                      K(A)                       K(B) Boom

'Statistics is the backbone of decision-making'. Comment.

Describe portfolio ratio, i need assignment help in portfolio ratio based questions.

Impact of government regulation on managerial Decision making Impact of government regulation on managerial Decision making how methods of control can influence market prices.

The monthly income of a company employee is normally distributed with the mean Rs. 20,000 and standard deviation of Rs. 5000. a) Find the probability that an employee earns more th

Question: Students in a science class have just received their grades on the first test.  The instructor has provided information about the first test grades in some previous c

1. What size sample will be needed to construct a 95% confidence interval on a ballot issue if the estimate must be 2% of the actual percent. This issue looks very close in the el

1. Describe two graphs/tables and how they are used to examine data. 2. Why are graphs and tables useful when examining data? 3. Describe how to make a histogram and a freque