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Byju's Answer
Standard XI
Physics
Frequency of Oscillations in LC Circuit
A capacitor o...
Question
A capacitor of capacity
2
μ
F
is charged to a potential difference of
12
V
. It is then connected across an inductor of inductance
0.6
mH
. The current in the circuit at a time when the P.D. across the capacitor is
6
V
is (in ampere).
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Solution
ω
=
1
√
L
C
=
10
5
√
12
q
=
q
0
cos
ω
t
2
×
10
−
6
×
6
=
2
×
10
−
6
×
12
cos
ω
t
cos
ω
t
=
1
2
⇒
ω
t
=
π
3
i
=
d
q
d
t
=
−
q
0
ω
sin
ω
t
i
=
0.6
A
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