3.The shunt field of a dc compound motor has a resistance of 200 ohms, a series field resistance of .0018 ohms and an armature resistance of 0.5 ohms. If the motor develops a back emf of 200 V at a full load current of 50A, and a rotational loss of 400 w, determine: a. The field currents b. The supply voltage

3.The shunt field of a dc compound motor has a resistance of 200 ohms, a series field resistance of .0018 ohms and an armature resistance of 0.5 ohms. If the motor develops a back emf of 200 V at a full load current of 50A, and a rotational loss of 400 w, determine: a. The field currents b. The supply voltage

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Similar questions

6. The graph to the right plots the current through a resistor as a function of time given that the resistor is connected to an inductor, and the combination is suddenly disconnected from a battery. What would change if the inductor is exchanged for one with a larger inductance and the process is repeated? a) Shorter decay time b) Longer decay time c) Higher initial current d) Lower initial current none of the above Plot of current in resistor vs time for a resistor which is disconnected from a battery at time 0 0.8 0.4 0.2 0 0.5 Time (microseconds) 1.5
In the bedroom of your house you would like to run a 360 W toward, a 30W alarm clock, a 720 W tanning bed, and three 60 W lights. Assuming your house is wired for 120 Volts, how much current will be pulled by these electrical devices? Amps
Calculate the peak voltage of a generator that rotates its 100-turn, 0.100 m diameter coil at 3600 rpm in a 0.800 T field.
Most household power in North America is 120? alternating current (VAC). However, some high-power appliances such as electric ranges and clothes dryers typically require a special 220?circuit. In this problem, you will calculate the energy, power, and current required by a dryer. You will also compare different methods of storing the energy required to run this appliance in a typical drying cycle. Consider a dryer that operates on 220?electricity, and it consumes an average power of 3000?. For this homework, the “Alternating Current” part of the story is irrelevant, so please use our ordinary DC equations (Perhaps this dryer has been specially made for physics experiments so it has a second input that allows it to operate on DC voltage as well!) A cubic meter of “natural gas” (mostly methane) at atmospheric pressure contains about40?? of usable energy. How much natural gas (in m3) would it take to power the dryer for 30minutes? Do some googling, and make an estimate (that means getting…
3613 In the eircuit shown in the figure, the switch S has been at position a for a long time, and then tis very quickly thrown to position b at 0. After this 3R Part A- What is the initial current in the 3R resistor? (Make sure to use the correct symbol for the EMF, which is not e) ? Submit ResuestAnswer Part B- What is the heat released by the 3R resistor in the time interval 0 stcc0? Submit Resuest Answer Part C- Write down /() for the 3R resistor. Pearson 1632 dal
Help!
What is the peak current (in A) through a 520 W room heater that operates on 125 V AC power? А
The alternating e.m.f. e = 150 sin (200 t) volt is applied to a pure resistance of 50 N. current through %3D Calculate R.M.S. the resistance.
The armature current of the series dynamo is 15 A. Rotor winding resistance 2.4 N, excitation winding resistance 0.8 Q and load resistance 10 2. According to this; A: The electromotor value generated in the rotor? B: Armature voltage value? C: Dynamo output voltage value? D: What is the power transferred to the load? E: What is the efficiency of dynamo? Please show the Circuit drawings?
A ground fault interrupter (GFI) is an electrical safety device which uses electromagnetic induction to compare the hot and neutral currents. If the difference between the two exceeds the GFI interrupts the circuit, as this is the maximum amount of harmless current that could "leak" into the human body. 25 mA O 250 mA 500 mA 50 mA O 5 mA