First slide

AC Circuits

Question

A LC circuit is in the state of resonance. If $C = 0 .1 μF$ and $L = 0 .25$ henry. Neglecting ohmic resistance of circuit, what is the frequency of oscillations?

Moderate

A

1007 Hz
B

100 Hz
C

109 Hz
D

500 Hz

Solution

$ν_{0} = \frac{1}{2 π \sqrt{(0 .25) \times (0 .1 \times 10^{- 6})}} = \frac{10^{4}}{9 .93} = 1007 Hz$

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