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5 July, 09:42

For a DC coupled amplifier with a single high frequency pole, the phase of the gain approaches 90 degrees at frequencies well above the upper corner frequency. True or false?

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  1. 5 July, 10:26
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    The answer is "False".

    Explanation:

    In electronic physics, the transmission of electricity by physical interaction through a conducting medium is the direct coupling or DC (also known as a conducting coupling) instead of impedance matching and power coupling.

    It is a frequency range, in which the above corner frequency isn't gain by step reaches 90 degrees. To permit signals of zero frequency, known as direct current, to go from input to output, the output of one phase of an amplifier is linked to the next stage, that's why it is incorrect.
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