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In the shown figure the conductor is uncharfed and a charfe q is placed inside a spherical cavity at adistance a from its centre C. Point P and charge+Q are as showna, b, c, d are known - . {:("Column I",,"Column II"),("Electric field due to induced charge on the inner surface of cavity at point P",,"zero"),("Electric potential due to charges on the inner surface of cavity and q at P",,"non-zero"),("Electric field due to induced charges on the outer surface of conductor and Q at C",,"value can be stated with the given data"),("Electric potential due to induced charges on the inner surcface of cavity at C",,"value cannot be stated from the given data"):} |
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Answer» (A) `ointvec E vec (dA) = (sumq)/(in_0)` If consider induced CHARGE only in Gaussian surface then if FIELD ` !=0` at `P` `A rarr Q,S` (B) If we consise induced charge `q'` and charge `q` the `q+q'=0`. then field will be ZERO so `V=0` (C) From Gauss THEOREM ` Q'' +Q rArr E =0` ` C rarr P,R` (D) `V= (Kq)/a D rarr Q,R`  .
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