An electromagnet is the most powerful type of magnet there is. It is a magnet with a current running through it that can be turned on and off. Why might it be useful to be able to turn the electromagnet on and off?(1 point)

Answer 1

One possible answer could be that being able to turn the electromagnet on and off allows for control over its magnetic field. This control can be used in various applications such as lifting objects, switching electrical circuits, or generating mechanical motion. Being able to turn off the electromagnet also allows for conserving energy and preventing overheating.

Answer 2

What does electric current measure?(1 point) Responses