Note

Q. What is Positive And negative value?

Ans: Contact AVO Meter Positive Pole To Parts Positive Pole and Negative Pole To
Negativ Pole.Than The Value We Get From AVO Meter is Called Positive Value.

And

Contact AVO Meter Positive Pole To Parts Negative Pole and Negative Pole To
Positive Pole. Than The Value We Get From AVO Meter is Called Negative Value.