The incorrect statement for `L-R-C` series circuit is

In L-C-R series circuit

In L-C-R series circuit

In L-C-R series AC circuit,

In L-C-R series AC circuit,

Resonance frequency for L-C-R, AC series circuit is f_0 = ……

The power factor of an L-R series circuit is 0.5 and that of a C-R series circuit is 0.2. If the elements (L, C and R) of the two circuit are joined in series and connected to the same ac source, the power factor of this circuit is found to be 1. The ratio of the resistance in the L-R circuit to the resistance in the C-R circuit is

At resonance the peak value of current in L-C-R series circuit is

Q - factor for resonance curve of L-C-R series circuit is defined as ....