An important safety consideration with an electromagnet is to disconnect the wires when not in use because they can get _.

A. hot

Explanation:

The current flowing through the wire makes the wire hot and drains the battery quickly.

pe = weightxheight = 2000x1000=2,000,000joules

adding a(n) to an electric circuit would increase the magnetic field around a wire;

b. solenoid

a solenoid is a type of electromagnet whose purpose is to generate a controlled magnetic field.

if the purpose of the solenoid is instead to impede changes in the electric current, a solenoid can be more specifically classified as an inductor rather than an electromagnet.