CH. 31

12.

A 0. 185 H inductor is connected in series with a 88 0 resistor and an ac source. The voltage across the inductor is vL = -(13.0V) sin[(490rad/s)t]. V Part B What is VR at 1.91 ms? Express your answer with the appropriate units. ? VR = 5.4 V Submit Previous Answers Request Answer X Incorrect; Try Again; 2 attempts remaining7 Part C You have a 240 Q resistor and a 0.400 H inductor. Suppose you take the resistor and inductor and make a series circuit with a voltage source that has a voltage amplitude of 28.0 V and an angular frequency of 300 rad/s. Express your answer with the appropriate units. What is the voltage amplitude across the resistor? Elm? VR: 31.2 V Submit Previous Answers Request Answer X Incorrect; Try Again; 3 attempts remaining Part E What is the phase angle o of the source voltage with respect to the current? Express your answer in degrees. AEd $ = 40.06 O Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining