ElectrostaticsHard
Question
A point charge q is brought from infinity (slowly so that heat developed in the shell is negligible) and is placed at the centre of a conducting neutral spherical shell of inner radius a and outer radius b, then work done by external agent is:
Options
A.0
B.
C.
D.
Solution
→ 
Work done by external agent :
Wext = UF − Ui
∴ Wext =
= 
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