(a) Why a bird perched on a high voltage wire is not killed by the current ?
(b) How many `176 Omega` resistors (in parallel) are required to carry a current of 5 A in 220 V line ?

Explanation

(a) The body of the bird perched on a high voltage wire can be considered to be branch line of an electric circuit whose resistance is very large as compared to the other branch (i.e., very short wire between the claws of the bird) of the circuit. Thus, the current that passes through the body of the bird is almost negligible and hence harmless.
(b) N/A