Required information A computer draws an rms current of 6.90 A at an rms voltage of 120 V. The average power consumption is 254 W. What is the phase difference between the voltage and current?
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- need help with parts b,e,gPart A A model-train transformer plugs into 120-V ac and draws 0.32 A while supplying 7.8 A to the train. What voltage is present across the tracks? Assume 100% efficiency Express your answer to two significant figures and include the appropriate units. Vs = Value Units Submit Request AnswerPart A A low-pass RC filter with a crossover frequency of 900 Hz uses a 70.0 Q resistor. What is the value of the capacitor? µF Submit Request Answer Provide Feedback
- A 4.87-uF and an 9.74-uF capacitor are connected in series to a 60.0-Hz generator operating with an rms voltage of 112 V. Part A What is the rms current supplied by the generator? ? Ims A Submit Request Answer Provide FeedbackWhat is the time constant of the capacitor and resistor circuit? Switch closes at 1=0 s. R=1K N ww V=12V C=2000 micro-faradPart A The figure below shows the time variation of the current through an electrical heater when it is plugged into a 230 V, 50 Hz outlet. What is the peak voltage? (Note: Outlet voltage is given as rms voltage.) 8 6 Current (A) -6 -8 325 V t You are correct. Your receipt no. is 168-9883 ? Submit Answer Tries 0/6 Part B What is the rms value of the current drawn by the heater? Part C What is the resistance of the heater? Submit Answer Tries 0/6 t(s) Previous Tries Submit Answer Tries 0/6 Part D If t₁ = 0.07 s, what is the value of t₂? Note: The graph does not start at t = 0 s.