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Byju's Answer
Standard XII
Physics
Inductors in Circuits
In the follow...
Question
In the following circuit if
V
A
B
=
4
V
, then the value of resistance X in ohms will be :-
A
5
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B
10
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C
15
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D
20
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Solution
The correct option is
D
20
Here,
V
A
B
=
E
1
r
2
+
E
2
r
1
r
1
+
r
2
or
4
=
(
5
×
X
)
+
(
2
×
10
)
10
+
X
or
5
X
+
20
=
40
+
4
X
or
X
=
20
Ω
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