Lenz's law AQA Alevel Physics

What Lenz's law is and how it relates to conservation of energy
AQA A level specification - post 2015
Music: TheFatRat - Unity

[@hamsandwichlover3075]

this is the best explanation I've seen :))

[@joelgodwin9916]

I though that the current only opposes the change that cause it in a complete circuits with an ammeter?

[@TLPhysics]

A complete circuit does not need an ammeter. Just the ability for the current to flow. So a complete loop.