First slide

AC Circuits

Question

L, C and R represent physical quantities inductance, capacitance and resistance respectively. The combination representing dimension of frequency is

Moderate

A

LC
B

${(LC)}^{- 1 / 2}$
C

${(\frac{L}{C})}^{- 1 / 2}$
D

$\frac{C}{L}$

Solution

Frequency $= \frac{1}{2 π \sqrt{LC}}$
So the combination which represents dimension of frequency is $\frac{1}{\sqrt{LC}} = {(LC)}^{- 1 / 2}$

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