- What is the voltage across the resistor? _______________
- What is the voltage across the inductor? _______________
- What is the sum of these two voltages? _______________
- What do you get when you calculate the square root of (VR2+VL2) ? _____________________
- VR is the voltage across the resistor.
- VL is the voltage across the inductor
- The square root of (VR2+VL2) is the Pythagorean theorem formula for the hypotenuse of a right triangle with the two small sides equal to VR and VL.