Q.
The electric field at 20 cm from the centre of a uniformly charged sphere of radius IO cm is E. Then at a distance 5 cm from the centre it will be :
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a
16E
b
4E
c
2E
d
Zero
answer is C.
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Detailed Solution
Eoutside=KQ(20)2=E ; Eoutside=KQ(5)(10)3=2E
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