Any electrical signal present in a circuit other than the desired signal is known as______________?
Correct answer: A. Noise
- A. Noise
- B. Distortion
- C. Interference
- D. All of these
Explanation
Noise is any unwanted electrical signal superimposed on the desired signal. Distortion changes the shape of the desired signal, while interference usually refers to unwanted signals from an external source.
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