Multiple choice

Why are there currently no fusion reactors in operation?

  1. we tried and it exploded

  2. too hard to control currently

  3. too expensive to build

  4. Not enough power production to be viable

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Nuclear fusion requires extremely high temperatures and pressures to overcome the electrostatic repulsion between nuclei. Maintaining these conditions in a stable, controlled environment for power generation remains a significant engineering challenge.