ElectrostaticsHard
Question
Assume a piece of cloud has area 25 × 106 m2 and electric potential 105V. If the height of cloud is 0.75 km, then energy stored by electric field between earth and cloud will be : (potential of Earth = 0)
Options
A.250 J
B.750 J
C.1225J
D.1475 J
Solution
V = Ed
⇒ E = V/d
Total energy =
(volume)
=
=
= 1475 J (approx.)
⇒ E = V/d
Total energy =
(volume)=
=
= 1475 J (approx.)
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