First slide

AC Circuits

Question

In a LCR circuit having L = 8.0 henry, C = 0.5 $μ$ F and R = 100 ohm in series. The resonance frequency in per second is

Moderate

A

600 radian
B

600 Hz
C

500 radian/sec
D

500 Hz

Solution

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

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