A resistor with R = 350 Ω and an inductor are connected in series across an ac source that has voltage amplitude 490 V . The rate at which electrical energy is dissipated in the resistor is 286 W .
(a) What is the impedance Z of the circuit?
(b) What is the amplitude of the voltage across the inductor?
(c) What is the power factor?
Answers: 3
Another question on Physics
Physics, 21.06.2019 23:30
An object starts from rest at point f and speeds up continuously as it moves around an oval. a. choose a point about 1/8 th of the way around the oval from point f, and label it point g. draw a vector to represent the velocity of the object at point g. b. determine the change in velocity vector between points f and g.
Answers: 1
Physics, 22.06.2019 05:30
Física: un futbolista patea hacia el arco con una velocidad de 15m/ah, calcular: a)el alcance para un ángulo de tiro de 25? , b) el tiempo que el balón permanece en el aire.
Answers: 3
Physics, 22.06.2019 11:20
If a rock is thrown upward on the planet mars with a velocity of 12 m/s, its height (in meters) after t seconds is given by h = 12t − 1.86t2. (a) find the velocity of the rock after two seconds. m/s (b) find the velocity of the rock when t = a. 12−3.72a m/s (c) when will the rock hit the surface? (round your answer to one decimal place.) t = s (d) with what velocity will the rock hit the surface? m/s
Answers: 1
Physics, 22.06.2019 12:30
Write a full page that sumerizes thermodynamics it’s from the website visionlearnig
Answers: 1
You know the right answer?
A resistor with R = 350 Ω and an inductor are connected in series across an ac source that has volta...
Questions
Computers and Technology, 30.10.2019 22:31
