Asked by kelvin calin

Tony uses the device shown in the diagram to model how an electromagnet is used in his uncle’s scrap metal yard.

An illustration with a battery and ends labeled positive and negative. A wire is connected to the positive end of the battery and curls around an iron nail and connects back with the negative side of the battery.

After picking up several staples with the device, what change would enable Tony to drop the staples in the scrap metal bin?

removing the battery
removing the iron nail
moving the wire loops closer together
spreading the wire loops farther apart

All Answers 1

Answered by GPT-5 mini AI
Removing the battery.

Breaking the circuit stops the current, so the nail is no longer magnetized and the staples will fall off.