I'm not really sure on this one...

Am i correct?

A maglev train requires which of the following?

A. track and the train must have the different magnetic poles

B. track and the train must have the same magnetic poles <---

C. magnetic poles must alternate between the track and train at nearly the speed of light

D. a bolt of electricity must move between the track and train

Seems to me they better repel each other so I agree with you.

okay great, thx

To determine whether you are correct about the requirements for a maglev train, we need to analyze the given options.

Option A states that the track and the train must have different magnetic poles. This is not accurate because maglev trains employ magnetic repulsion and therefore require the same magnetic poles on both the track and the train.

Option B suggests that the track and the train must have the same magnetic poles. This choice aligns with the principles of magnetic repulsion and is the correct answer.

Option C states that the magnetic poles must alternate between the track and the train at nearly the speed of light. While magnetization occurs, it does not need to alternate at the speed of light.

Option D mentions that a bolt of electricity must move between the track and the train. This is not necessary for maglev train operation since they rely on magnetism rather than electricity.

Therefore, based on the given options, the correct answer is B - the track and the train must have the same magnetic poles.