0
A transformer is a passive device while an amplifier is an active device. a transformer can amplify voltage but never power WHILE AN AMPLIFIER CAN amplify power's can you use it sure withing the limitation of the transformer and only to amplify volts.
Wiki User
∙ 14y ago
Wiki User
∙ 10y agoNo. A transformer is simply windings on a core, and simply changes the voltage of a signal. It doesn't add power, so as the voltage goes up, the amperage goes down, maintaining constant power (minus losses).
In my mind, an amplifier adds power.
Add your answer:
Earn +20 pts
Is transformer an amplifier?
No. In an amplifier, Power Out > Power in. In a transformer Power Out ~= Power In (minus internal losses). An AC generator is more like an amplifier than a transformer.
Can you use ordinary transformer in place of auto transformer?
yes we can place auto transformer in place of original transformer
Which coupling gives high gain in case of amplifier?
no.transformer coupling gives higher gain
Which amplifier converts millivolt to volt?
to convert a 100mv to 1volt u will have to multiply it by 10. so u will need a stepup amplifier to do that. u can depend on am op-amp based amplifier to do it if u r allowed to use external supply, else u will need a transformer for the same. Ashish.K
What is the formula for gain in a power amplifier that has a step down transformer?
A: there is no formula the gain of the amp is just reduced by the transformer turn ratio minus efficiency or loss. the transformer is for isolation and impedance matching
How does transistor acts as an amplifier?
When transformer is used in step up mode then we can use transformer as amplifire
How does transistor acts an amplifier?
When transformer is used in step up mode then we can use transformer as amplifire
Is transformer an amplifier?
No. In an amplifier, Power Out > Power in. In a transformer Power Out ~= Power In (minus internal losses). An AC generator is more like an amplifier than a transformer.
Can you use ordinary transformer in place of auto transformer?
yes we can place auto transformer in place of original transformer
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.
Which coupling give higher gain in case of amplifier?
Transformer coupling
Name two ways to increase the current to a load?
1) Use an operational amplifier.2) If voltage is not an issue, a transformer may be used.
What is the definition of audio-frequency transformer?
An audio frequency transformer is a transformer designed to operate in the range of frequencies audible to the average human. This range is generally accepted to be from 20 Hz to 20,000 Hz. The usual purpose of an audio transformer is to match impedances between circuit sections. For example: between a microphone and the input of an amplifier, (input transformer), or between the output of an amplifier and the loud speaker. (output transformer).
Which coupling gives high gain in case of amplifier?
no.transformer coupling gives higher gain
Which coupling gives the higher gain in case of amplifier - a Capacitor coupling b Impedance coupling c Transformer coupling?
transformer coupling
Why is a transformer necessary?
A transformer is not 'necessary'. The human race evolved, and developed cultures, societies, disease resistance, and technology, without ever seeing a transformer. But there are specific situations in which desirable things can be accomplished much more effectively and efficiently with a transformer than with any other device or method. Here are a couple of examples: -- If the voltage you have available is not the voltage you need, then you can use a transformer to make the change. (But that only works for AC.) -- You can use a transformer to change the output impedance of an amplifier to the impedance of the speaker or earbuds you want to use with it.
Which amplifier converts millivolt to volt?
to convert a 100mv to 1volt u will have to multiply it by 10. so u will need a stepup amplifier to do that. u can depend on am op-amp based amplifier to do it if u r allowed to use external supply, else u will need a transformer for the same. Ashish.K
