Soft iron core is used in a transformer because

Hi, I am planning to conduct an experiment using electromagnet but I could not find the soft iron core. My school lab doesn't have it, and I tried asking around in shops which sell electrical appliances and shops which sell science apparatus but nobody seems to sell it. Does anyone know where can I get one? And how many tesla should be sufficient for experiments involving magnetic levitation? "soft" probably refers to its magnetic property, meaning it is not easy to permanently magnetize it. You can experiment with scrap iron like a bolt or railroad spike, or take apart an old transformer. Here's a link to a manufacturer of iron cores with educational material. just one source , of many returned by a google search: one Tesla is a pretty strong magnet. My school lab doesn't have it, and I tried asking around in shops which sell electrical appliances and shops which sell science apparatus but nobody seems to sell it. did you try a hardware shop, they would have all sorts of things made out of sort iron rod that you could put into use or go to a building site and grab a 0.5 metre length of scrap reinforcing rod Dave did you try a hardware shop, they would have all sorts of things made out of sort iron rod that you could put into use or go to a building site and grab a 0.5 metre length of scrap reinforcing rod Dave A traditional method is to heat up a mild steel bolt or nail to cherry red using a Bunsen Burner and plunge it into water. It should look black. "soft" probably ref...

the question is why is soft iron preferred to Steel in making of the core of the transformer so as we all know the transformer AC device and work on the principle of electromagnetic induction induction there are so many energy losses in transformer so soft iron core is preferred in making the core of the Transformer the answer is to minimise the energy losses of the transformer due to stress is loss per unit