NEET LR, RC and LCR Circuits MCQs & PYQs

The figure shows variation of R, XL and XC with frequency f in a series L, C, R circuit. Then for
what frequency point, the circuit is inductive ?

In pure inductive circuit, the curves between frequency f and reciprocal of inductive reactance 1/XL is :

In the adjoining A.C. circuit the voltmeter whose reading will be zero at resonance is :–

In a purely inductive AC circuit, which of the following sketches represent the variation of the current amplitude I0 with the frequency ω ?

The phase difference between applied voltage and current in RLC series is :

Consider following in AC circuits and their characteristics :

The graph shows variation of I with f for a series R-L-C network. Keeping L and C constant. If R
decreases :

(a) Maximum current (Im) increases
(b) Sharpness of the graph increases
(c) Quality factor increases
(d) Band width increases

The readings of ammeter and voltmeter in the following circuit are respectively :-

Which one of the following curves represents the variation of impedence (Z) with frequency f in series LCR circuit :-

For given circuit, find effective impedance for frequencies much higher than resonating
frequency.