This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Battery IV curve showing negative static resistance.svg battery showing negative static resistance red socscocstatic is negative and it produces power which is consumed in the external circuit Applying voltage greater than the open circuit voltage or less than zero to it will result in current in the direction of decreasing potential