First slide

Electrical Resonance series circuit

Question

In an LCR circuit having $L = 8 .0 H, C = 0.5 μF$ and R = 100 ohm in series, the resonance frequency in radian per second is

Moderate

A

600
B

400
C

500
D

300

Solution

Resonance frequency is
$ω = \frac{1}{\sqrt{LC}} = \frac{1}{\sqrt{8 \times 0 .5 \times 10^{- 6}}} = 500 rad / \sec$

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