Tardigrade
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Tardigrade
Question
Physics
If the electric flux entering and leaving an enclosed surface respectively is φ1 and φ2, the electric charge inside the surface will be
Q. If the electric flux entering and leaving an enclosed surface respectively is
ϕ
1
and
ϕ
2
, the electric charge inside the surface will be
1789
198
AIEEE
AIEEE 2003
Electric Charges and Fields
Report Error
A
(
ϕ
2
−
ϕ
1
)
ε
0
49%
B
ε
0
(
ϕ
2
+
ϕ
1
)
14%
C
ε
0
(
ϕ
2
−
ϕ
1
)
23%
D
(
ϕ
2
+
ϕ
1
)
ε
0
15%
Solution:
According to Gauss’s theorem, charge in flux
ε
0
c
ha
r
g
e
e
n
c
l
ose
d
b
y
t
h
e
s
u
r
f
a
ce
∴
q
=
(
ϕ
2
−
ϕ
1
)
ε
0
.