Amateur Extra › E5 Electrical Principles › E5B11
E5B11
What is the phase angle between the voltage across and the current through a series RLC circuit if XC is 25 ohms, R is 100 ohms, and XL is 75 ohms?
Pick an answer to check it.
Answer: B. 27 degrees with the voltage leading the current
Net X = XL - XC = 75 - 25 = +50 ohms (inductive). Angle = arctan(50 / 100) = 26.6 degrees, about 27 degrees. Inductive circuits have voltage leading current.
Tip: Inductive: voltage leads (ELI).