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Q: What converts sound waves to an electrical signal?
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Continue Learning about Electrical Engineering

What are the types of signal?

An Analog Signal is a continuous signal, just like an electric current that flows through the copper cables when your electrical appliances are turned on. This continuous signal represents physical measurements. An example of this would be with an analog audio signal, the voltage amount of the signal changes continuously with the change in sound waves. Analog Signals are normally represented as electrical signals, but there is also Classical Mechanics, Pneumatics, and Hydraulics technique's that can be used in analog signals.


How are analog signals transmitted-?

Analog signals are transmitted as electrical waves.


What is the difference between transistor and transformer?

A transistor in the right circuit, contributes a POWER GAIN by taking energy from an external power supply. A transformer actually has losses but is primarily used for Impedance Matching. This is very useful in establishing the most efficient arrangements for transmitting power from the source to the load. Impedance matching is an important function of all power transfer systems.


What wave type is used by digital communications?

In digital communications, a digit is either a one or a zero, or an "on" or an "off" signal. The wave shape that is composed of "on's and off's" is the square wave.


Sound quality between AM and FM?

There are two types of modulations. They are amplitude modulation and frequency modulation. In AM, amplitude of the signal is modified. In FM, frequency is getting modulated. Frequency modulated with carrier waves are transmitted and received by receivers without any distortion.