yes, I understand any piece of metal is attracted to a magnet, but that would not explain why opposite end of the compass needle are attracted to opposite ends of the battery right?
So your suggestion is that since this battery has at some point been connected to a circuit, that current aligned the (what are they called, territories?)in the metal and thus magnetized the casing? If this is true, would i not expect to see this from a brand new battery?
Homework Statement
I'm an introductory electromagnetism course and in lab we were observing how an electric current could deflect a compass needle. however, i also noticed that the batter itself (with no wire attached, so no current) could also deflect the needle. (for ex, if you brought the...