The barrier to fusion comes about because protons:
A) attract each other via the strong nuclear force
B) repel each other electrically
C) produce magnetic fields
D) attract neutrons via the strong nuclear force
E) attract electrons electrically

Question

Quizplus · Accepted Answer

The barrier to fusion primarily comes from the fact that protons, being positively charged, repel each other electrically. This electrostatic repulsion must be overcome for fusion to occur, where nuclei combine to form a heavier nucleus.

The Barrier to Fusion Comes About Because Protons