PLEASE WATCH VIDEO - about a simple electric train (less than 2 min) to help me

Question

PLEASE WATCH VIDEO - about a simple electric train (less than 2 min) to help me understand/ answer these quesitons:

  https://youtu.be/J9b0J29OzAU

1. Review the “Simple Electric Train” video. After viewing the video, work with your group to answer the following questions:

2. Explain why the train moves using the “force on a current in a magnetic field” approach to explain the force(s) that make the train move.

3. Explain why the train moves using the “magnet in a magnetic field” approach to explain the force(s) that make the train move

4.Draw the current direction, appropriate field lines, and resulting force vector on the following diagrams. Please define the positive end of the battery as the front of the train and then show and label the current flow, fields & their directions, and the resulting forces so that the train will move forward.
5. In the preceding diagram, is your force vector acting along the axis of the coil and battery?

6. What parameters affect the magnitude and direction of the force?

Explanation / Answer

consider the magnetic field lines inside the copper spring(solenoid). there will be no force inside the solenoid as a bar magnet created using the battery will have the magnetic field lines parallel to the movement. but at the ends, the field lines are not parallel.

2. the magnet is a conductor. therefore when the first end of the magnet contacts the solenoid, and then the second end, a closed circuit is created at the vicinity of the battery. the current flows in the direction of the solenoid wires at the battery tip and hence the magnetic field is created around the tip. by appying flemmings right hand rule, the force is in the foward direction. this force is the same at each point making it o move in uniform speen inside the solenoid.

3. the magnet is a conductor. therefore when the first end of the magnet contacts the solenoid, and then the second end, a closed circuit is created at the vicinity of the battery. since the current flows through the loop, by applying ampere's hand rule the magnetic field from the solenoid is created parallel to the field by the magnets attached to the battery. the two magnetic fields repell and attract each other simultaneously. this makes the battery to move. untill the current loop

PLEASE PROVIDE INFORMATION ABOUT THE DIAGRAMS.

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