12.15 What is magnetic breaking?

When a magnetic field passes over a metal surface eddy currents are induced in the metal. Applying Lenz's law we find that there will be a force on the metal which opposes the change. This can be used in magnetic breaking.
Topics for A-level Physics: AQA Paper 2, OCR paper 2, Edexcel Paper 1 and NCERT Class 12
00:00 Intro
00:44 Eddy current explained
02:25 Tube with slit
03:15 Magnetic breaking explained
04:44 Questions
04:54 Answers
#a_level #physics #magnetic_field

[@osmansadat9650]

Hi, this isn’t related to the video but in the mark scheme when they have something in brackets is that just for extra information or is it something we need to have?

[@MrNagaPhysics]

You don't need to have it to get the mark.
I recommend including whatever is in the bracket in any future answers you give. This is incase the examboard decides to be more strict when coming up with mark schemes for upcoming years.