For the same resonant frequency, if L is changed from L to $${L \over 3}$$, then capacitance should change from C to

What should be the value of self-inductance of an inductor that should be connected to 220 V 50 Hz supply, so that a maximum current of 0.9 A flows through it?

If impedance is $$\sqrt3$$ times of resistance, then find phase difference.

For a series L-C-R circuit at resonance, which statement is not true?