A bird sitting on a naked wire carrying current feels quite
safe, but when the wire between his feet is cut and joined
by a very long loop of wire, the bird dies. Why?
Answers were Sorted based on User's Feedback
Answer / khan
because when a bird is sitting on naked wire its potetial
difference is zero, when there is no pitential difference
the bird does not get current but when wire between his
feet is cut and joined by a very long loop of wire,the
potential difference is created and current passes thorugh
the bird and hence it dies
| Is This Answer Correct ? | 2 Yes | 0 No |
Answer / sanju
In the first case it feels quote safe, because the feathery
pad under hid feet is a poor conductor and hence the
current, talking the path of least resistance, flows
straight along the wire and the bird is unaffected. In the
second case the resistance of loop becomes considerable and
is of the same value as that of feathery pas. So a part of
the current passes through his body and it dies.
| Is This Answer Correct ? | 1 Yes | 0 No |
WHICH ONE FEELS COLDER METAL SURFACES OR WOODEN SURFACES?
why velocities of x rays and gamma rays are same inspite they have different wavelengths and frequencies
What is the difference between a vector and a phasor?
Explain about Bessemer?
a person carrying a bucket of water will leans towards his left why?
What is pascal s principle?
Explain the Magnifying power ?
Explain the Principle of Calorimetry ?
Is the electric field constant or does it vary with time in dielectric materials?
How do you find the refractive index of a liquid by using total internal reflection?
What is curvilinear motion?
how does a basic rubber ink filler work?