Question 121: AC fundamentals

Question

For a series LCR circuit with R = 100 $\Omega$, L = 0.5 mH and C = 0.1 pF connected across 220V$-$50 Hz AC supply, the phase angle between current and supplied voltage and the nature of the circuit is :

Accepted Answer

R = 100$\Omega$
${X_L} = \omega L = 50\pi  	imes {10^{ - 3}}$
${X_C} = {1 \over {\omega C}} = {{{{10}^{11}}} \over {100\pi }}$
${X_C} >  > {X_L}$
& $\left| {{X_C} - {X_L}} ight| >  > R$

Answer

0$^\circ$, resistive circuit

Answer

$ \approx $ 90$^\circ$, predominantly inductive circuit

Answer

0$^\circ$, resonance circuit

Answer

$ \approx $ 90$^\circ$, predominantly capacitive circuit

AC fundamentals

For a series LCR circuit with R = 100 \Omega, L = 0.5 mH and C = 0.1 pF connected across 220V-50 Hz AC supply, the phase angle between current and supplied voltage and the nature of the circuit is :

Choose the correct answer: