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The element which can weaken a signal system is ___________

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in Signals and Systems by (1.2m points)
The element which can weaken a signal system is ___________

(a) Attenuation

(b) Distortion

(c) Noise

(d) Attenuation, Distortion & Noise

I had been asked this question in examination.

My question is taken from Fourier Series and LTI Systems in portion Fourier Series of Signals and Systems

1 Answer

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by (42.1k points)
The correct option is (d) Attenuation, Distortion & Noise

To elaborate: We know that distortion is the alteration of the original shape, attenuation is the reduction of signal strength and noise is the unwanted output of a signal or system. So, attenuation, distortion and noise all can impair a signal.

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