1) Many detaches the two wires from the battery and reattaches them to the opposite terminals. Explain how this changes the current and magnetic field.
2) Suppose you pull the paperclips away from the nail. Explain how the potential energy between the paperclips and the nail changes.
1)it starts moving /performing random action 2)once the paper clips is pulled away from the nail it will not perform the same action ,it not hold them together it changes to force field instead of contact force
