Question

Why are large electromagnets necessary in nuclear fusion reactors?

a) To contain the strong nuclear force.

b) To generate the gravitational force.

c) To confine and control plasma.

d) To shield against radiation.

Answer 1

Large electromagnets are necessary in nuclear fusion reactors to confine and control plasma.

Step-by-step explanation:

Large electromagnets are necessary in nuclear fusion reactors to confine and control plasma. Because no solid materials are stable at the high temperatures needed for fusion reactions, mechanical devices cannot contain the plasma. Therefore, electromagnets are used to generate a magnetic field that can confine and control the hydrogen plasma necessary for fusion reactions.