Q .     The top of the atmosphere is about `400 kV` with
respect to the surface of the earth,
corresponding to an electric field that decreases
with altitude. Near the surface of the earth, the
field is about `100 Vm^(-1)`

Still, we do not get an electric shock as we step
out of our house into the open house, because
(assume the house to be a steel cage so that
there is no field inside)

UPSEE 2014
A

there is a potential diffwmce between our body and the ground

B

`100 vm^(-1)` is not a high electric field so that we do not feel the shock

C

our body and the ground forms an equipotential surface

D

the dry atmosphere is not a conductor

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