Magnetism and Its Applications

What is the fundamental relationship between electricity and magnetism?

• Magnetism is only present in natural magnets.

• Magnetism is a force generated by stationary charges.

• Magnetism is a force generated by moving electrical charges.

• Magnetism is unrelated to electricity.

Why do MRI machines require powerful magnets?

• To create colorful images.

• To align protons deep inside the body.

• To generate heat for imaging.

• To make the machine quieter.

What is the purpose of using strong magnets in nuclear fusion?

• To sustain the plasma at high temperatures.

• To cool down the fusion reactor.

• To create a magnetic field for MRI.

• To generate electricity directly.

What role do magnetic fields play in the Large Hadron Collider?

• They slow down the protons.

• They create images of subatomic particles.

• They keep protons on track in the accelerator.

• They provide energy to the protons.

What was the significance of the Higgs boson discovery?

• It demonstrated the power of nuclear fusion.

• It explained how particles acquire mass.

• It proved the existence of black holes.

• It showed that magnets can be superconducting.

What is a hybrid magnet?

• A magnet that combines resistive and superconducting elements.

• A magnet that uses only superconducting coils.

• A magnet that is cooled to absolute zero.

• A magnet that is used only in medical imaging.

How did researchers achieve a 1,200 tesla magnetic field?

• By cooling a magnet to absolute zero.

• By compressing a magnetic field in a small space.

• By using a large superconducting magnet.

• By using a hybrid magnet.

What is the potential application of studying carbon nanotubes with strong magnetic fields?

• To improve nuclear fusion reactors.

• To develop faster and more energy-efficient processors.

• To create more powerful MRI machines.

• To enhance particle acceleration.

What is electromagnetic flux-compression?

• A method to cool down magnets.

• A process to align protons in MRI machines.

• A technique to increase magnetic field strength by compressing flux.

• A way to generate electricity from magnets.

Why are resistive magnets not limited in field strength like superconducting magnets?

• They are smaller in size.

• They can be cooled to lower temperatures.

• They can handle larger currents without resistance.

• They are made of stronger materials.