A bird can safely land on a bare high voltage power line because
A) If both feet are touching the bare wire,they are at the same potential - and therefore no current can flow between the feet and through the bird's body
B) Its internal resistance is very high,so very little current will flow
C) The line cannot deliver enough current to harm it
D) Its feet are good insulators,and therefore it is protected

Question

Quizplus · Accepted Answer

When both feet of the bird are touching the bare wire, they are at the same potential, so no current can flow through the bird's body. This is known as equipotentiality, and it ensures that there is no potential difference across the bird's body, preventing the flow of current.

A Bird Can Safely Land on a Bare High Voltage