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.)
Create a free account to view solution
View Solution FreeMore Electrostatics Questions
As shown in figure, on bringing a charge Q from point A to B and from B to C, the work done are 2 joule and − 3 jo...A ball of mass 1g and charge 10-8 C moves from a point A (VA = 600 V) to the point B whose potential is zero. Velocity o...Three point charge +q,-2q and +q are placed at point (x = 0, y = a, z = 0), (x = 0, y = 0, z = 0) and (x = a, y = 0, z =...At any point on the right bisector of line joining two equal and opposite charges...From a point if we move in a direction making an angle θ measured from + ve x-axis, the potential gradient is given...