First slide

Phasors and Phasor Diagrams

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

Easy

A

105 Hz
B

10 Hz
C

$\frac{10^{5}}{2 π} Hz$
D

$\frac{10}{2 π} Hz$

Solution

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

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