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JEE Main Physics Class 12 Electrostatic Potential and Capacitance Part 2 Questions
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© examsnet.com
Question : 30
Total: 100
Two uniformly charged spherical conductors
A
and
B
of radii
5
mm
and
10
mm
are separated by a distance of
2
cm
. If the spheres are connected by a conducting wire, then in equilibrium condition, the ratio of the magnitudes of the electric fields at the surface of the sphere
A
and
B
will be :
[26-Jul-2022-Shift-2]
1
:
2
2
:
1
1
:
1
1
:
4
Validate
Solution:
V
A
=
V
B
KQ
A
R
A
=
KQ
B
R
B
Q
A
Q
B
=
R
A
R
B
=
1
2
E
A
=
KQ
A
R
A
2
;
E
B
=
KQ
B
R
B
2
E
A
E
B
=
Q
A
Q
B
×
R
B
2
R
A
2
=
R
B
R
A
=
2
1
© examsnet.com
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