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Byju's Answer
Standard X
Physics
Combination of Resistances
In the follow...
Question
In the following circuit shown, if point B is earthed then potential at D will be
A
40
V
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B
−
40
V
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C
0
V
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D
80
V
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Solution
The correct option is
C
−
40
V
Given,
V
B
=
0
here,
V
B
−
V
C
=
15
or
0
−
V
C
=
15
⇒
V
C
=
−
15
V
and
V
C
−
V
D
=
25
or
−
15
−
V
D
=
25
⇒
V
D
=
−
40
V
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