Answer Posted / rinchen

to get shock, it is mainly with the potential difference.
when the bird sits on HT lines the potential difference
created between thier two legs are negligible, whereby
there will be no current according to the relation
V=IR; Sicne V=0, R=constant(birds body
resistance). I=V/R
I=0/R =0AMPS.

And similarly when the man hangs, it creates less
potential difference, so no shocks experiences.

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