What component does a magnetic field have little to no influence on?

A magnetic field has little to no influence on resistors because resistors are designed to provide resistance to the flow of electrical current, primarily based on their material properties and geometry, rather than electromagnetic principles. Their operation is governed by Ohm's Law, which relates voltage, current, and resistance, and does not involve magnetic fields.

In contrast, inductors and transformers rely on magnetic fields for their function, with inductors storing energy in a magnetic field and transformers transferring energy between circuits through magnetic induction. Capacitors, while primarily influenced by electric fields, can also have some interactions with fluctuating magnetic fields due to the changing current affecting the capacitor's behavior in high-frequency applications. However, resistors remain largely unaffected by magnetic fields.