May I ask....what is the dc component in this case?

 

If it is a pure sine wave and is symmetric around zero volts, then the DC component would be zero.

 

May I ask....what is the dc component in this case?

Since the question states that it has a vertical offset of 1.5V, that would be the DC component. Unless I am confusing that with something else.

 

How does the offset work in that scope? On mine, a 1.5V offfset moves the trace UP.

Assuming zero volts is mid screen we had to add 1.5 to the wave to move it up and center it, so the wave has a negative 1.5V offset.

And welcome to the forums! (I wanted to say "circus" as I expect everyone who wanders thru this post today to have a different answer.)

 

I'm with Ernie. The problem did not say the scope had a negative 1.5V vertical offset, so it must be that the scope has a positive 1.5V offset dialed in with its adjustments.

 

So that the dc component is -1.5V?

 

So that the dc component is -1.5V?

Yes