Physics · Oct / Nov 2023 · Paper 11 · Question 30
A bar magnet is dropped through a vertical solenoid that is connected to a sensitive ammeter. A current is induced in the solenoid and the solenoid becomes an electromagnet. Which row describes the polarity of end Y of the solenoid and the force between the solenoid and the bar magnet when the bar magnet leaves the solenoid?
- Anorth attraction
- Bnorth repulsion
- Csouth attraction
- Dsouth repulsion
As printed in the paper
Show the answer
Correct answer: A. north attraction
Make a free account to save your answers and see your weak topics and ask the AI why a wrong answer is wrong.