In a 60-Hz RLC circuit,the phase angle is positive.The values of the resistance,inductance,and the capacitance are now doubled.Which of the following is now true about the phase angle?
A)It is still positive.
B)It could be zero.
C)It will be negative.
D)It could be positive,negative,or zero,but it cannot be greater than its original value.

Question

Quizplus · Accepted Answer

Doubling the resistance, inductance, and capacitance in an RLC circuit does not change the sign of the phase angle. The phase angle's sign is determined by the dominant component (inductive or capacitive). If the phase angle was positive (indicating an inductive circuit where the voltage leads the current), doubling all components keeps the circuit inductively dominant, thus maintaining a positive phase angle.

In a 60-Hz RLC Circuit,the Phase Angle Is Positive