True or False: There must be relative motion between a magnetic field and a conductor to generate electrical energy.

The assertion is true because the generation of electrical energy through electromagnetic induction specifically requires relative motion between a magnetic field and a conductor. This principle is encapsulated in Faraday's Law of Electromagnetic Induction, which states that a change in the magnetic environment of a conductor will induce an electromotive force (EMF) in the conductor.

This relative motion can occur in various forms, such as moving the conductor through a stationary magnetic field or vice versa. For instance, in power generation, a rotating magnet near coils of wire can induce voltage in those wires, thus generating electrical energy. Without this relative motion, there would be no change in the magnetic field experienced by the conductor, and therefore, no induced electrical energy.

Understanding this concept is vital for linemen, as it lays the groundwork for how generators and transformers operate, ensuring that they recognize the necessity of movement in these systems to create electricity.