We have an isolated conducting spherical shell of radius 10 cm. Some positive charge is given to it so that the resulting electric field has a maximum intensity of The same amount of negative charge is given to another isolated conducting spherical shell of radius 20 cm. Now, the first shell is placed inside the second so that both are concentric as shown in figure.
The electric potential at any point inside the first shell is
Interaction energy is
Self-energies are
Total energy is
Both the charges will get neutralized and there will be no charge left on any sphere. So no energy will be left in the system. It means whole amount of energy will convert into heat.
The electric field intensity just inside the outer sphere is
Interaction energy is
Self-energies are
Total energy is
Both the charges will get neutralized and there will be no charge left on any sphere. So no energy will be left in the system. It means whole amount of energy will convert into heat.
The electrostatic energy stored in the system is
Interaction energy is
Self-energies are
Total energy is
Both the charges will get neutralized and there will be no charge left on any sphere. So no energy will be left in the system. It means whole amount of energy will convert into heat.
If both the spheres are connected by a conducting wire, then
Interaction energy is
Self-energies are
Total energy is
Both the charges will get neutralized and there will be no charge left on any sphere. So no energy will be left in the system. It means whole amount of energy will convert into heat.
Similar Questions
Two point charges +Q each have been placed at the positions (-a/2,0, 0) and (a/2,0, 0). The locus of the points where -Q charge can be placed such that total electrostatic potential energy of the system can become equal to zero, can be represented by which of the following equations?
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