Which statement describes the reason for removing the insulation from the ends of the wires used to make an electromagnet?

A. the ends of the wires become magnetic when the insulation is removed

B. The wires are easier to handle after insulation has been removed from them

C. The metal of the wires must be in contact with the terminals of a battery

D. the insulation on the wires causes the direction of an electric current to reverse

The answer is different for other people so look out.The answer here is C. The metal of the wires must be in contact with the terminals of a battery.

Explanation:

I took the quiz.

why do the isotopes of a particular element behave differently in nuclear reactions but the same in chemical reactions? chemical reactions involve changes to electrons in an atom; isotopes do not differ in electrons, and so they react the same way during chemical changes.