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An amplifier will amplify a signal. For example, the antenna in a radio will receive an extremely weak signal; before it can be converted to a sound, it must be amplified (made stronger), by a factor of several million.
Of course, since you can't produce energy out of nothing, an amplifier doesn't actually produce the energy for the strong version of the signal - it requires a power supply.
Wiki User
∙ 13y ago
Wiki User
∙ 13y agoAn amplifier will amplify a signal. For example, the antenna in a radio will receive an extremely weak signal; before it can be converted to a sound, it must be amplified (made stronger), by a factor of several million.
Of course, since you can't produce energy out of nothing, an amplifier doesn't actually produce the energy for the strong version of the signal - it requires a power supply.
Wiki User
∙ 12y agoAn amplifier makes a copy of a signal. The copy is usually larger than the original signal.
The copy may have a greater voltage than the original, a greater current, or both.
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The basic function of a transformer is to change?
The basic function of a transformer is to change voltage levels.
How does a transistor function as an amplifier?
A: The small base current will control the collector current flow by adding a resistor this changes of current flow will be evident as a voltage amplifier.
Why does a CE amplifier have a high gain?
GAIN is a function of load current but basically a small current in the base will make a big change of collector current therefore making a transistor a voltage amplifier as opposed to a current amplifier
What is the basic difference between transistor as an amplifier and a step up transformer?
The output power of an amplifier is greater than its input power, whereas the output power of a transformer is almost the same as its input power. In other words, an amplifier increases acts to increase power, whereas a transformer only increases voltage.
Who is more gain amplifier cascaded amplifier or darlington amplifier?
Darlington amplifier has more gain when compared to cascade amplifier .
Do you need a Amplifier for 6x9 speakers?
You need an amplifier for any speakers if they are to function.
What is the function of an amplifier in electronic communications?
An amplifier is used to increase the strength of the signal.
How a triode works as basic amplifier?
A triode works as a basic amplifier by the use of radio waves. The radio waves produce a heat that is amplified.
What is the function of if amplifier in radar receiver?
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What is the function of an amplifier in an electrical curcuit?
It essentially boosts the voltage across the amplifier, and through the circuit.
How do you Derive the Instrumentation Amplifier Transfer Function?
Here is qn excellent article that explains step by step: http://MasteringElectronicsDesign.com/how-to-derive-the-instrumentation-amplifier-transfer-function/
what is the Primary function of the common collector amplifier?
current gain
The basic function of a transformer is to change?
The basic function of a transformer is to change voltage levels.
What is the function of a buffer amplifier in electronics?
A buffer amplifier can be used to transform high input impedence to low output impedence, or vice-versa.
How do you connect digital amplifier to digital amplifier?
You can look at the in and out connectors on the TV and the amplifier. You have choices that depend on the tv and amplifier, basic stereo, surround sound and tos-link. As you know in and out are connected and out and in are connected. Do not connect in and in to each other and do not connect out and out to each other.
What is the basic function of electricity?
the basic function of electricity is to develop energy.
What is the main function of the power supply to a certain amplifier?
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