In an RLC series circuit,if the AC frequency is decreased to a very small value,what value does the phase angle between the current and voltage approach?
A)90 $\degree$
B)0 $\degree$
C)-90 $\degree$
D)45 $\degree$

Question

Quizplus · Accepted Answer

In an RLC series circuit, if the AC frequency is decreased to a very small value, the reactance of the inductor will become very large, while the reactance of the capacitor will become very small. This means that the circuit will behave as a purely inductive circuit. In a purely inductive circuit, the current lags behind the voltage by 90 degrees. Therefore, the phase angle between the current and voltage will approach -90 degrees, which is given as choice C.

In an RLC Series Circuit,if the AC Frequency Is Decreased °\degree°

In an RLC Series Circuit,if the AC Frequency Is Decreased $\degree$