Physics, 23.09.2019 15:30 Courtneymorris19
Q3) a three-phase y-connected four-pole winding is installed in 24 slots on a stator. there are 40 turns of wire in each slot of the windings. all coils in each phase are connected in series. the flux per pole in the machine is 0.060 wb, and the speed of rotation of the magnetic field is 1800 r/min. (a) what is the frequency of the voltage produced in this winding? (b) what are the resulting phase and terminal voltages of this stator? (c) what are the resulting phase and terminal voltages of this stator is it is rewired as delta connected stator? (d) what is the frequency of the voltage produced if the machine had 8 poles instead of 4 poles.
Answers: 3
Physics, 21.06.2019 23:30
Two technicians are discussing a resistance measurement between the can-h and can-l wires. technician a says this measurement should be done with the ignition switch in the "run" position. technician b states that a measurement of 0 ohms indicates an open in the network. which technician is correct?
Answers: 3
Physics, 22.06.2019 02:50
20. threshold braking in the vehicle's braking system occurs when a. the brake pedal is pushed, heel on floorboard, with full foot pressure. b. the brakes are exerting full braking power, without traction loss. c. the driver begins pushing down the brake pedal, with moderate slowdown. d. the brakes just begin to take hold with a gradual slowdown.
Answers: 3
Physics, 22.06.2019 05:00
Which is the best predictor of the radioactive nature of an isotope? o the proton-to-electron ratio the neutron-to-proton ratio o the neutron-to-electron ratio the electron-to-proton ratio
Answers: 1
Physics, 22.06.2019 11:30
Two 1.20-m nonconducting wires meet at a right angle. one segment carries + 2.50 µc of charge distributed uniformly along its length, and the other carries - 2.50 µc distributed uniformly along it, as shown in fig. 21.50. ( a. find the magnitude and direction of the electric field these wires produce at point p, which is 60.0 cm from each wire. ( b. if an electron is released at p, what are the magnitude and direction of the net force that these wires exert on it?
Answers: 3
Q3) a three-phase y-connected four-pole winding is installed in 24 slots on a stator. there are 40 t...
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