Question

int-out should have 18 questions. Multiple-choice questions may continue on the next column or page - find all choices before answering 5. no current flow 001 10.0 points A magnetic dipole is falling in a conducting metallic tube. Consider the induced current in an imaginary current loop when the magnet is moving away from the upper loop and when the magnet is moving toward the lower loop. Explanation: When the falling magnet is below the up- per loop, Tind must be up to attract the falling magnet and slow it down; i.e., counter- clockwise as viewed from above. Before reaching the lower loop, Tind must be down to oppose the falling magnet; i..., clockwise as viewed from above, 100=- EO Nede Node dipole magnet dipole magnet Spole I below

I believe the answer is wrong but I am not sure! please explain why it is right or wrong

Answer 1

answer: remember here magnet is moving and conducting metallic tube is fixed :

now let's talk about its direction:

1.if falling magnet is going downwards then in LOOP above the magnet the current direction should be in clockwise direction because when magnet is going downwards its magnetic lines which passed through upper hypothetical loop surely decreases : so in order to oppose this the current should be in clockwise direction and attractive force will be downwards.

2. similar thing you can apply for lower loop > as magnet goes down >magnetic lines passes through lower loop will increase >loop will oppose >counter clockwise current >force downwards .