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MHT CET 2021 Physics Solved Paper
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© examsnet.com
Question : 24
Total: 100
A series
L
−
C
−
R
circuit is connected to a source of alternating emf of
50
V
and the potential difference across inductor and capacitor is
90
V
and
60
V
, respectively. The potential difference across the resistor is
70
V
60
V
40
V
80
V
Validate
Solution:
(c) Given,
V
=
50
V
,
V
L
=
90
V
,
V
C
=
60
V
In
L
−
C
−
R
circuit,
∴
V
=
√
V
R
2
+
(
V
L
−
V
C
)
2
⇒
V
2
=
V
R
2
+
(
V
L
−
V
C
)
2
50
2
=
V
R
2
+
(
90
−
60
)
2
⇒
2500
=
V
R
2
+
900
⇒
V
R
2
=
1600
⇒
V
R
=
√
1600
=
40
V
© examsnet.com
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