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![[Post New]](/templates/default/images/icon_minipost_new.gif) 8 May 2008 23:54:49 IST
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ELECTROSTAT
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"You need a perfect strategy to clear JEE more than knowledge " |
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9 May 2008 00:00:52 IST
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Q1 An infinitely long conducting cylinder of radius 12cm has linear charge density 3nC/m.What is field at pt. 10cm from surface?
Q2 Two charges q1 =6 C and q2 = -8C are within spherical surface of radius 5 cm.What is total flux through surface???????
Q3 A positively charged metal sphere of radius a is at centre of a metal shell of radius b.How should surface charge densities be related for field to be zero for r>b ?????
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"You need a perfect strategy to clear JEE more than knowledge " |
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9 May 2008 15:25:30 IST
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HELPPPPPPPPPPPPPPP
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"You need a perfect strategy to clear JEE more than knowledge " |
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9 May 2008 15:34:11 IST
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1) 12k
2)2/e0
3)obviously more field as the variation due to external field is inversely related.........
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9 May 2008 15:37:42 IST
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2 ) net charge enclosed / 
= 2 /
from outside to inside
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9 May 2008 23:19:07 IST
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sid rocks plzzzzzzzzz explain your solutions...................
and answer to 3rd is a relation plzzzz establish it
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9 May 2008 23:31:30 IST
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for the 3rd question..............Charge densities shud be equal but opposite in signs...
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