both positive and negative effects were there. It killed economy, but brought social changes.
What negative effects can black rats do
3/4 of Europe died which meant that people who had a trade or business were gone leaving room for those alive to improve their lives creating a middle class for the first time.
Red is positive and black is negative.
Black is negative - Red is positive +
Black = Negative Black + White = Positive Tried and tested.
Neither.
Yes, black represents negative and red represents positive.
The red cable is the positive and the black cable is the negative. The positive post is slightly larger.
Red is positive, Black is the negative
Look for a + by the positive terminal and a - by the negative terminal, or red for positive, black for negative. Some batteries have the positive terminal protruding and the negative terminal flat. Or you can get a meter that will tell you which is which,
Black is negative and Red is positive.
A black hole can have a positive charge, negative charge, or no charge. It all depends on the charges of the material that fall into it.