Transformer experiment

Question

Are there any experiments conducted where we test a transformer by inputting more iron cores in to the original solenoid linking the output and the input voltage? I asked several questions on this but I am not seeming to get an answer and am getting curious. I would appreciate some clarification or sources.

Answer 1

What you describe is done during the design process for a transformer. The designer varies the amount of iron in the core until (s)he is satisfied that there is just enough iron present to prevent core saturation at the intended power level for the transformer.