List of top Physics Questions on LCR Circuit asked in KCET

A sinusoidal voltage produced by an AC generator at any instant \( t \) is given by an equation \( V = 311 \sin (314t) \). The rms value of voltage and frequency are respectively
Which of the following combinations should be selected for better tuning of an LCR circuit used for communication?
In an LCR series circuit, the value of only capacitance \( C \) is varied. The resulting variation of resonance frequency \( f_0 \) as a function of \( C \) can be represented as
The figure shows variation of \( R \), \( X_L \), and \( X_C \) with frequency \( f \) in a series LCR circuit. Then for what frequency point is the circuit capacitive?
frequency point
Total impedance of a series LCR circuit varies with angular frequency of the AC source connected to it as shown in the graph. The quality factor Q of the series LCR circuit is
Graph of LCR circuit
In series LCR circuit at resonance, the phase difference between voltage and current is
In the given circuit the peak voltage across C,L and R are 30V, 110V and 60V respectively. The rms value of the applied voltage is
rms value of the applied voltage
The power factor of R-L circuit is $\frac{1}{\sqrt{3}}$. If the inductive reactance is $2\Omega$. The value of resistance is
The figure shows variation of R,XL and XC with frequency ' f ' in a series LCR circuit. Then for what frequency point is the circuit capacitive?
LCR circuit
Which of the following combinations should be selected for better tuning of an LCR circuit used for communication?
In an LCR series circuit, the value of only capacitance C is varied. The resulting variation of resonance frequency f0 as a function of C can be represented as