A magnetic field influences an electrical field through the interaction of charged particles, but the effect on a nonferrous charged object is minimal. When a magnet is brought near such an object, it does not significantly alter the object's charge or behavior. The discussion raises curiosity about the measurements taken during MRI scans, which utilize magnetic fields to visualize internal structures. MRI technology relies on the magnetic properties of hydrogen atoms in the body, rather than direct interactions with charged objects. Understanding these principles is essential for grasping how MRI imaging works.