Question:
A circuit that uses an amplifier with passive filter elements is called as a(n)
A circuit that uses an amplifier with passive filter elements is called as a(n)
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In signal processing, active filters are often used when amplifiers are combined with passive components to control frequency response.
Updated On: May 5, 2025
- Relaxation oscillator
- Signal generator
- Differential amplifier
- Active filter
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The Correct Option is D
Solution and Explanation
A circuit that uses an amplifier along with passive filter elements (such as resistors, capacitors, and inductors) is called an **active filter**. Active filters use amplifiers to enhance the filtering capability, often used to process analog signals and remove unwanted frequencies. Therefore, the correct answer is option (4).
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