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Byju's Answer
Standard XII
Physics
RLC Circuit
In the circui...
Question
In the circuit shown, the voltage drop across the
2
R
resistor must be
A
V
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B
V
2
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C
4
V
3
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D
2
V
3
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Solution
The correct option is
C
2
V
3
We know,
Capacitor acts as an open circuit in steady state.
Then it is clear that battery V isn't included in the circuit.
Hence potential difference 2V is dropped in R and 2R
in 1:2 respectively.
Let current in the circuit be
I
By Kirchhoff loop law,
V
−
I
R
−
I
2
R
=
0
=
V
−
3
I
R
I
=
V
3
R
Potential difference along resistance 2R,
I
×
2
R
=
V
3
R
×
2
R
=
2
V
3
Option
C
is the correct answer.
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0
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