Question

Why don't birds get shock while sitting on electric wires?

Answer 1

i gues wire are coated

Answer 2

and what about the wires which are'nt coated ?

Answer 3

interesting question :)

Answer 4

well all wires which are drectly expose to us are always coated as keeping this in mind dat no one will get shocked all wired who are exposed are coated

Answer 5

i don't think so!

Answer 6

due to zero electric potential

Answer 7

ok kajol can u give me example where u seen wire without any coating

Answer 8

When the bird perches on a live wire, her body becomes charged--for the moment, it's at the same voltage as the wire. But no current flows into her body. A body is a poor conductor compared to copper wire, so there's no reason for electrons to take a detour through the bird. More importantly, electrons current flow from a region of high voltage to one of low voltage. The drifting current, in effect, ignores the bird.

But if a bird (or a power line worker) accidentally touches an electrical "ground" while in contact with the high-voltage wire, she completes an electrical circuit. A ground is a region of approximately zero voltage. The earth, and anything touching it that can conduct current, is the ground.

in short It’s because the electricity is always looking for a way to get to the ground, but the birds are not touching the ground or anything in contact with the ground.

Answer 9

got it?

Answer 10

hmmm... yes ^.^

Answer 11

yeah thnx.:)

Answer 12

At the moment of touching the wire the birds body get charged same as the wire contain. But this will not cause electric current. and drifting of electrons can be negligible. and there is only zero potential.

Answer 13

@Aravind yaar short me he likh deta

Answer 14

:)

Answer 15

nice additional info arvi thnx a lot ^.^

Answer 16

welcomes!!

Answer 17

All izz well

Answer 18

@Aravind. perfect

Answer 19

@Aravind is not me :) i am @AravindG

Answer 20

But i think she cant understand it well cause she is new in physics

Answer 21

@heena near my house!

Answer 22

really @kajolc.2496 ?

Answer 23

yes!!

Answer 24

also i've seen many times the borders are of live wires, so that no one can cross it..

Answer 25

can u tell me lil more detail have u seen copper wires open as lemme tell u single wire is made up of several wires so wat u seen plz tell me

Answer 26

@heena actually i m not sure whether the wire is of Cu or not, but they're metallic and not coated with plastic or any other insulation.

Answer 27

yea it happens the wire which u seen is single or many?

Answer 28

single wires in a group.

Answer 29

hmm... that is dangerous if it will be attacehd to circuit definitely anything whch will touch that wire will get current :O

Answer 30

sorry g2g..
time for my studies
ttyl.
bye :)

Answer 31

sure anyway nice qn :)

Answer 32

XDD..

Answer 33

Ground is always needed to flow of electrons..

So, no ground no current to birds..

Answer 34

Overhead wires are rarely covered in insulation if they carry high voltages. They are usually just bare aluminum wires. Birds don't get shocked because there is no place for the electricity to go -- there is no path to complete the circuit, so that the electricity can flow from one side of the (distant) generator to the other. That is always necessary, which is why your electric plugs all have two prongs: one to deliver the electricity, and one to take it back again. It's like the fact that no water will flow from even a very full reservoir if there is no place for it to flow to.

You can easily find videos of electrical workers touching and working on high-voltage power lines carrying 100,000 volts or more of electricity. They get to them by helicopter, and as long as neither they nor the helicopter touches another wire, or the tower or ground, it's perfectly safe.