A solid sphere made out of metal having a bulk modulus of 2 x 10 11 Nm -2 is charged uniformly to a surface charge density 
, where 
is the permittivity of free space and 
(magnitude = 1) is a positive constant of appropriate dimensions. If the volume strain produced in the sphere after charging is x x 10 -11 , then the value of x is
Text Solution
Verified by ExpertsThe correct answer is:
CHECK THE SOLUTION.
(0.25)
Bulk modulus is given by
The outward electrostatic pressure is
P electrostatic = 
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