What principle governs the effects induced by electromagnetic fields in tissues?

The principle that governs the effects induced by electromagnetic fields in tissues is electromagnetic induction. This principle involves the generation of electric currents within conductive materials (such as biological tissues) when they are exposed to changing magnetic fields. In the context of magnetic resonance imaging (MRI) and other applications of electromagnetic fields, understanding electromagnetic induction is crucial, as it helps explain how magnetic fields can cause induced currents and potentially create physiological changes in tissues.

This principle is particularly relevant when considering how varying fields interact with biological systems, affecting both the safety and effectiveness of MRI procedures. The induced currents can lead to various effects, which are essential considerations for professionals in the field to ensure safety and compliance with regulatory standards. Thus, a comprehensive understanding of electromagnetic induction is vital for those specializing in magnetic resonance safety.