Physics, asked by surajjagadhesan9430, 1 year ago

Igcse physics mcq a student demagnetises a magnetised steel bar. He places the bar in a solenoid connected to a power supply. He then removes the bar from the solenoid. Which row indicates the most effective way of demagnetising the bar?

Answers

Answered by ak4286
1
putting the bar into solenoid as polarity is different as produced by solenoid and the steel bar
Similar questions