 I have a cell, a wire with alligator clips at the end and a magnetic compass. You can also have a loose wire but make sure the insulation is removed from both the ends of the wire. Now what I'll do is I will bring these two alligator clips in contact with the two terminals of the cell and I want you to predict what will happen. Do you expect to see any kind of behavior by the magnetic compass? Think about it. Alright let's see. So they are in contact and we see the needle deflecting, right? And when we removed the contact with the two terminals of the cell, the needle came back to its original position. Let's see again. And they are in contact and see the needle deflecting. Let's have a look at it again. Well again the needle deflects and when we remove the contact, the needle comes back to its original position. So why did this happen?