Weakning magnetic fields?

Question

Are there any known materials besides other magnetic fields that will weaken, block, ect other magnetic fields? I mean in the sense of how lead is used to to weaken or block electormagnetic radiation(i.e. x-rays). Any thing it all will help, thanks.

Answer 1

A wrong assumption is made that electromagnetic radiation is magnetic and electric. The word was given for convenience about radiation of radio waves . What is called electromagnetic radiation is neither magnetic or electric.
Magnetic field are not blocked , They can only be contained in magnetic material such as iron. The magnetic field will travel in a circuit just like electrons remain contained in a circuit.