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(A) For instance, if we measure the roomtemperature continuously and plot it graph with time on X-axis and temperature on the Y-axis, we get a continuous waveform, which is an analog signal. Analog is always continuous. (B) The absence or presence of something can be used to plot a digital signal. (C ) An analog signal is a continuously varying signal, similar to a sinusoidal waveform. (D) Any signal can be classified into one of the two types: analog and digital. (E) In contrast, a digital signal takes the form of pulses, where we have something or nothing. Which of the following should be the FOURTH sentence after rearrangement? |
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Answer» A |
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