Question

Can you explain solutions ?

Question 1

The breakdown field strength at which an insulator loses its insulating ability and allows a discharge to pass through is 26.27 V/m. At this field strength, Find the electric energy density.(Take permittivity of free space 8.85x10-12 C2N-1m-2).Write your answer in multiples of 10-12J/m3

Correct Answer

3054.0

Question 2

Find the total energy stored in units of micro Joules in a metallic spherical shell of radius 8 mm and charge 7 nano C. (Take permittivity of free space 8.85x10-12 C2N-1m-2 and take ?=3.14). Your answer must contain 1 decimal place.

Correct Answer

27.6

Answer 1