Final answer:
The transposition of transmission lines refers to the rearrangement of the phases of the conductors in overhead power lines to reduce power losses. By transposing the conductors, the overall effect is a reduction in electrodynamic forces and a more uniform distribution of current.
Step-by-step explanation:
The transposition of transmission lines refers to the rearrangement of the phases of the conductors in overhead power lines. This is done to reduce power losses caused by certain phenomena such as inductive coupling and asymmetrical loading. By transposing the conductors, the overall effect is a reduction in electrodynamic forces and a more uniform distribution of current, leading to improved efficiency and operation of the transmission lines.