Reading voltage across house lines

Use a volt/ohm meter, cheap at big box stores.

In order for us to help, we need more information from you.

I know you are looking for a voltage reading, but where and how much voltage do you expect to see?

based on the post that got erased:


where to read to get voltage- is it white to black or black to ground or ground to white

Assuming a receptacle or a power feed.

Black to white = 120 V
Black to Ground/green = 120 V
Ground/Green to white ~0V