Question

A resonant ac circuit contains a capacitor of capacitance $10^{- 6}F$ and an inductor of $10^{- 4}H.$ The frequency of electrical oscillations will be

• A. $10^{5}Hz$
• B. 10 Hz
• C. $\frac{10^{5}}{2\pi}Hz$
• D. $\frac{10}{2\pi}Hz$

Answer 1

Answer: (C)

$\frac{10^{5}}{2\pi}Hz$

Answer 2

$\nu = \frac{1}{2\pi\sqrt{LC}} = \frac{1}{2\pi\sqrt{10^{- 6} \times 10^{- 4}}} = \frac{10^{5}}{2\pi}Hz$