What is the phase angle between the voltage across and the current through a series RLC circuit if XC is 300 ohms, R is 100 ohms, and XL is 100 ohms?
63 degrees with the voltage lagging the current✓Правильный ответ
63 degrees with the voltage leading the current
27 degrees with the voltage leading the current
27 degrees with the voltage lagging the current
Объяснение
The inductive and capacitive reactances leave a net reactance of −200 Ω, so the circuit is capacitive. With 100 Ω of resistance the arctangent of −200/100 is about −63°, meaning the current leads the voltage, or equivalently the voltage lags.