RC coupling is not used to amplify extremely low frequencies because____________?
Correct answer: C. Electrical size of coupling capacitor becomes very large
- A. There is considerable power loss
- B. There is hum in the output
- C. Electrical size of coupling capacitor becomes very large
- D. None of the aboveCompare Home Electronics
Explanation
At extremely low frequencies, the capacitor must have a very large capacitance to keep its reactance small. Such a capacitor becomes physically large and costly, making RC coupling impractical.
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