If an AC circuit is displaying the behavior of a high-pass filter circuit, then

Question

If an AC circuit is displaying the behavior of a high-pass filter circuit, then we would expect the limit of the gain as the frequency becomes very small to equal ______ .

A)

zero

B)

infinity

C)

RC

D)

one

E)

the angular frequency

If an AC circuit is displaying the behavior of a low-pass filter circuit, then we would expect the limit of the gain as the frequency becomes very small to equal ______

A)

zero

B)

infinity

C)

RC

D)

one

E)

the angular frequency

A)

zero

B)

infinity

C)

RC

D)

one

E)

the angular frequency

Explanation / Answer

Here,

as the AC circuit is behaving as a high pass filter ,

it will allow high frequencies to pass and block the lower frequecies

Now, as the frequency becomes smaller ,

gain will become Zero

---------------------------------
as the AC circuit is behaving as a low pass filter ,

it will allow low frequencies to pass and block the higher frequecies

Now, as the frequency becomes smaller ,

gain will become one

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