Answer:
The reason the bird is not electrocuted is due to some facts about circuit:
1. Completeness of circuit- This circuit needs to be
complete in order for current to flow. The bird standing on only one wire has not completed the circuit.
2. A potential difference: Another factor deciding
the direction of flow of current is (electric)
potential. Current always flows from a higher
potential to a lower potential. In other words it
can be said that electrons flow from lower
potential to higher one. (the direction of electric
current is opposite to that of the electrons). So
we need the potential difference for current to
flow. The bird standing on only one wire has no potential difference.
3. Path of least Resistance- Factor that decides
the path a current will flow in case of parallel
paths is the (electric) resistance offered by the
path. Current will always flow in the path that
offers least resistance. The leg of a bird has high resistance.
Explanation:
It has no potential difference as both the legs of bird are touching the same wire at same constant potential. ... If the bird would touch the ground while sitting on the wire or flap its wings and touch another electric wire with a different voltage, then it would get shocked and likely die by electrocution.
while in the other hand, the Bird that touches two wires with it wings at the same time will get electrocuted because it has completed a circuit and the its feathers created a potential difference .
