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Byju's Answer
Standard XII
Physics
Discharging of Capacitors
VR & VC are o...
Question
V
R
&
V
C
are output voltages across the resistor and capacitor respectively. Choose a correct option.
A
As frequency of source increases,
V
C
increases.
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B
As frequency of source increases,
V
C
decreases.
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C
V
R
is independent of frequency.
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D
V
R
decreases with an increment in frequency.
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Solution
The correct option is
B
As frequency of source increases,
V
C
decreases.
V
R
=
i
R
&
i
=
ε
z
=
ε
√
R
2
+
x
2
c
x
c
=
1
ω
c
With an increment in
ω
,
x
c
decreases, so
i
increases; hence,
V
R
increases. Also,
ε
=
√
V
2
R
+
V
2
C
, so as
V
R
increases,
V
c
decreases.
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