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AIEEE 2003 Physics Solved Paper
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© examsnet.com
Question : 39
Total: 74
A thin spherical conducting shell of radius
R
has a charge
q
. Another charge
Q
is placed at the center of the shell. The electrostatic potential at a point
P
a distance
R
2
from the center of the shell is
2
Q
4
π
ε
0
R
2
Q
4
π
ε
0
R
−
2
q
4
π
ε
0
R
2
Q
4
π
ε
0
R
+
q
4
π
ε
0
R
(
q
+
Q
)
2
4
π
ε
0
R
Validate
Solution:
Electric potential due to charge
Q
placed at the center of spherical shell at point
P
is
V
1
=
1
4
π
ε
0
Q
R
/
2
=
1
4
π
ε
0
2
Q
R
Electric potential due to charge
q
on the surface of the spherical shell at any point inside the shell is
V
2
=
1
4
π
ε
0
q
R
© examsnet.com
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