What is the name of the device that provides an increase in current, voltage, or power of a signal without appreciably altering the original signal?

What is the name of the device that provides an increase in  current, voltage, or power of a signal without appreciably  altering the original signal?
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1 Answer

Answer :

Amplifier.
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A device which supplies a voltage is commonly referred to by what name?

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Does a filter circuit increase or decrease the average output voltage?

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In the power amplifier shown in figure 2-10, what two signals are mixed to produce the output signal? In the power amplifier shown in figure 2-10, what two signals are mixed to produce the output signal?

Description : In the power amplifier shown in figure 2-10, what two signals are mixed to produce the output signal?

Last Answer : Local oscillator and coherent oscillator.

Which performance parameter is the minimum amount of optical power required to achieve a specific bit-error rate (BER) in digital systems or a given signal-to-noise ratio (SNR) in analog systems?

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What condition produces the 10-kHz error signal generated by the metering bridge in the HP- 431C power meter?

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