# Is a sine signal a continous signal (analog signal) or a digital signal (discrete signal)?

Victor89
Also can we have an analog signal in alternating current?

Gold Member
2022 Award
A sine wave is an analog signal. Alternating current is nothing BUT analog, so I don't even understand how you can ask the question. I think you must have been given some VERY misleading information about what is digital and what is analog.

Victor89

I wasn't sure if my thinking was correct but now I see that I was correct.

At a test I gave the example of an analog signal as a sine wave.

Gold Member
You can have a digital representation of a sine wave as well. I wouldn't have given you credit on an exam answered in that fashion if I was grading. You can have a signal, either analog or digital, that is sinusoidal, but a sine is not descriptive enough to distinguish between an analog and a digital signal.

Victor89
I was asked to draw a continuous signal and I draw a sine wave, which it is continuous.
Can someone provide me other(better) examples?

Gold Member
2022 Award
I was asked to draw a continuous signal and I draw a sine wave, which it is continuous.
Can someone provide me other(better) examples?