A resistor R, an inductor L and a capacitor C are connected in series to an oscillator of frequency n. If the resonant frequency is $${n}_{r}$$,then the current lags behind voltage, when :
  • A
    $$n=0$$
  • B
    $$n<{n}_{r}$$
  • C
    $$n={n}_{r}$$
  • D
    $$n>{n}_{r}$$

Solution