Question

A resistor r an inductor l and a capacitor in series to an oscillator of frequency is n then the current lags bheind voltage when

Answer 1

$2\pi n = \omega$

Required condition: $\omega L > \frac{1}{\omega C}$

=> $2\pi nL > \frac{1}{2\pi nC$

The above condition should be satisfied for the current to lag behind the voltage.

If there is no capacitor, use C = 0.