0
Why birds do not get electric current when they sit on electric wire?
Wiki User
∙ 14y ago
In order for electricity to shock something it needs to be touching the ground. Electricity goes through the body and back into the ground. Since the crow is in no way touching the ground the electricity has no where to go and thus can not shock the crow. If you touch the wire and are not touching anything that conducts electricity (like metal) and are not touching the ground you will not get shocked either. But if you stand on the ground and touch the wire you will get shocked.
Wiki User
∙ 11y ago
Wiki User
∙ 13y agoBecause it's not touching the ground
To get an electric shock, there needs to be a difference in voltage between the parts of your body that are in contact with the electrical circuit. If both the bird's feet are on the same wire, they're at the same voltage - so no shock. But if one of them is on one wire, and pecks at a bird on a different wire, or at a bird that's standing on an earthed light fitting, then the current flow from one beak to the other will blow both the birds' tailfeathers off......
Anonymous
Anonymous
Wiki User
∙ 10y agoFor current to flow, there must be a complete path from the wire to another wire, or to the ground. The bird is not "grounded" and there is no difference between potentials when it is sitting on one wire.
Wiki User
∙ 14y agoBecause they do not stand on the wire and the ground at the same time so there is no large potential difference.
When humans are shocked it is electricity passing through them to the earth.
Wiki User
∙ 15y agowhy the crow will not be affected while sitting in the eletric wire?
Add your answer:
Earn +20 pts
Why is it that a bird can perch without harm on high voltage?
There is no curcuit for the bird to get zapped. In order to create a curcuit the live wire has to be "earthed". This cam be done if the bird gets in conatact with another wire, the voltage will create a curcuit which creates a strong electrical current (at 2300v!) which goes straight through the bird and fries it! What you may have noticed however; is that bats can get fried, they usually hang upside down on one wire and the wind blows them into cantact with the other wire.
Why do big birds get killed by power lines but little birds don't?
The wingspan on a big bird is large enough to touch two wires at once. Any difference in voltage between the wires will cause current to flow through the bird, perhaps killing it. Small birds can only touch one wire at a time.
How do birds not get electrocuted on power lines?
Actually if we were to sit on a power line and not touch anything else like the birds do we would not get electrocuted.The current a flow of electrons,flows along a path of least resistance the electrons want to get to where they are going in the easiest possible way. Electricity flows from one voltage to another value of voltage. For the birds, the power lines have the same voltage -- so the birds are safe. Don't approach power lines, because humans come from the ground, which is a sink for the current.
Which bird gives birth to young ones without laying eggs?
There are many birds that do not have to sit on their eggs constantly. Robins only sit on the eggs occasionally.
Why do birds sit on sheep?
To more easily catch the insects that the sheep disturb when they are grazing.
Why can birds sit on a wire without getting an electric shocked?
You only get an electric shock if you are touching both the ground and the electric wire, (or close enough to both for the electricity to arc) Birds sat on electricity cables are not close enough to the ground for the electricity to arc, therefore they do not get shocked.
What happens if someone touches a high voltage wire?
If they are grounded they get an electric shock or electrocuted. If they are not grounded or in simultaneous contact with the neutral wire, nothing. That's why birds can sit on a high voltage wire and survive; they are not grounded.
When you touch the high voltage wires you feel current but when birds sit on them they do not feel currentwhy?
Because you're standing on the ground. But the bird contacts only the wire, sothere's no path through the bird for current to flow from the wire to anywhere else.
When birds sits on a cable it gets shocked by a current?
In simple words we can say that when birds sit on the single conducting wire then there is not closed path&when it touch both conductor at a time then closed path forms & birds die due to shock
Why don't birds get shock while they sit on electric transmission wires?
no they dont
What does it mean when birds sit on a wire?
Looking down at everyone, and not being a part of things, only a spectator
Why dont birds die when landing on electrical cables?
High voltage electricity can kill if it passes trough your body. When birds sit on the power cable, the electrical current cannot pass trough their body because no part of their body is touching the ground or any other wire.
Why don't birds get electrocuted sitting on a wire?
Very interesting...A current will flow (or somebody will get electrocuted!) if there is a sufficiently high potential difference across him.When birds sit on a wire (of high potential), the whole body becomes at a high potential, and there is no potential difference across it. Hence, no current passes through it and the bird is not electrocuted.However, if a person, while standing on the ground, touches the same wire, he will be electrocuted.add You've discovered one of the reasons why overhead electric wires are separated from each other. We do have blackouts caused by a bird or an opossum (Aus) bridging between the wires. In NZ in suburbia, almost all power poles have a wide metal band on them to stop the possums from climbing them.
Why can animals sit on high voltage electrical lines?
Animals can sit on HIGH VOLTAGE Electrical lines. It does not give any current to animals or birds unless the circuit is complete. It is essentlal to complete the electrical circuits for making any current. When bird sit on the line / conductor the only legs of birds touched single line and it does not touch the other two conductors below upper line/conducotr , which does not make circiuit complete and birds / animals does not feel current.
Why is it that a bird can perch without harm on high voltage?
There is no curcuit for the bird to get zapped. In order to create a curcuit the live wire has to be "earthed". This cam be done if the bird gets in conatact with another wire, the voltage will create a curcuit which creates a strong electrical current (at 2300v!) which goes straight through the bird and fries it! What you may have noticed however; is that bats can get fried, they usually hang upside down on one wire and the wind blows them into cantact with the other wire.
How crows can sit on current wires without getting current shock?
Shocks are caused when an electric current is able to pass through a person/creature, as it goes from a conductor connected to (or touching) a power terminal, and returns to the power source via its return terminal. A crow can sit on a wire, and provided it doesn't touch anything else, there is nowhere for a current to go. Even so, as the line voltage for AC power goes from + to - and back again many times a second, the crow can "store" a certain amount of charge due to its capacitance. The capacitance is quite low, so these alternating currents through its legs are very small. Nevertheless, many birds can feel this current and they don't like it.
How is it possible for a bird to sit on an electric line without getting electrocuted?
Unless the bird contacts two wires at the same time, the electric current will not pass through the bird.
