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consider a neutral conducting sphere of radius `a` with a spherical cavity of radius `b`. A charged conducting sphere of radius `c` is placed in cavity . Centre of this sphere coincide with centre of cavity charge on the inner sphere is `q` total self energy of this arrangement is:A. `(kq^(2))/(2a)-(kq^(2))/(2c)-(kq^(2))/(2b)`B. `(kq^(2))/(2a)+(kq^(2))/(2c)-(kq^(2))/(2b)`C. `(kq^(2))/(a)+(kq^(2))/(c)-(kq^(2))/(b)`D. `(kq^(2))/(2a)-(kq^(2))/(2c)-(kq^(2))/(2b)` |
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Answer» Correct Answer - B Energy with in the cavity `=(kq^(2))/(2c)-(kq^(2))/(2b)` Energy out side the sphere `=(kq^(2))/(2a)` total energy `=(kq^(2))/(2a)+(kq^(2))/(2c)-(kq^(2))/(2b)` |
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