Easy
At resonance,the value of current in a series $L-C-R$ circuit is: (Symbols have their usual meanings.)
- A$\frac{e_0}{R}$
- B$\frac{e_0}{\sqrt{R^2+\omega^2 C^2}}$
- C$e_0\left[R^2+\left(\omega L+\frac{1}{\omega C}\right)^2\right]$
- D$\frac{e_0}{\sqrt{R^2+\omega^2 L^2}}$
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