The top of the atmosphere is at about 
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 
. 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)
is not a high electric field so that we do not feel the shock
Text Solution
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Dry atmosphere is not a conductor. Only when the voltage in clouds increases to a very large value and there is moisture in the air, the lightening strikes the ground. 400 volts is not very high voltage that it will not strike the ground.
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