Calculating Phase Angle & Voltage in Series RL Circuit

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SUMMARY

The discussion focuses on calculating the phase angle and voltage in a series RL circuit comprising a resistor (R) and an inductor (L). Given a resistor value of 1Ω and an inductor reactance of 1Ω, the phase angle between the current and the supply voltage is 45 degrees. The voltage across the resistor is 1V, while the voltage across the inductor is also 1V, resulting in a total supply voltage of √2 V.

PREREQUISITES
  • Understanding of series RL circuits
  • Knowledge of impedance calculation
  • Familiarity with sinusoidal voltage and current concepts
  • Basic trigonometry for phase angle calculations
NEXT STEPS
  • Study the concept of impedance in AC circuits
  • Learn about phasor diagrams and their applications
  • Explore the relationship between voltage, current, and phase angle in RL circuits
  • Investigate the effects of varying resistance and inductance on circuit behavior
USEFUL FOR

Electrical engineering students, circuit designers, and anyone involved in analyzing AC circuits and their components.

Solidsam
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An inductor “L” is connected in series with a Resistor “R”. This circuit is connected to
a sinusoidal voltage “V”, and a current of 1A flows. If the circuit resistor has a value
of 1W, and the magnitude of the reactance of the inductor “L” is 1W at the supply
frequency, state:

(i) The phase angle of the current with respect to the supply voltage

(ii) The magnitude of the voltage developed across the Resistor “R”, and the
inductor “L”



Like where do I even start? what equations should I be looking at?
 
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Hi Solidsam! :wink:

Start by finding the impedance :smile:
 

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