subject
Engineering, 13.07.2019 05:20 stef76

If a number of turns in a coil is 100 turns and the reluctance of this coil is 1000 au/wb. if the coil current is 2a, then the magnetic field is equal to: a)- 2 wb b)- 0.2 wb c)- 0.02 wb d)- 0.002 wh.

ansver
Answers: 3

Another question on Engineering

question
Engineering, 04.07.2019 18:10
Thermal stresses are developed in a metal when its a) initial temperature is changed b) final temperature is changed c) density is changed d) thermal deformation is prevented e) expansion is prevented f) contraction is prevented
Answers: 2
question
Engineering, 04.07.2019 19:10
A)-in the process of engineering design, explain the contribution of material selection. b)- explain the procedure of synthesis as is employed in engineering design. c)- is there any relationship between ergonomics and engineering design? explain. d)- safety consideration in engineering design includes human, product and the enviroment . explain how safety will be incorporated into the design?
Answers: 3
question
Engineering, 04.07.2019 19:20
Consider airflow over a flat plate of length l = 1.5 m under conditions for which transition occurs at le = 0.9 m based on the critical reynolds number, re,e = 5 x 10. evaluating the thermophysical properties of air at 400 k, determine the air velocity. (hint: use the tables to find the properties of air)
Answers: 3
question
Engineering, 06.07.2019 03:10
Tom is having a problem with his washing machine. he notices that the machine vibrates violently at a frequency of 1500 rpm due to an unknown rotating unbalance. the machine is mounted on 4 springs each having a stiffness of 10 kn/m. tom wishes to add an undamped vibration absorber attached by a spring under the machine the machine working frequency ranges between 800 rpm to 2000 rpm and its total mass while loaded is assumed to be 80 kg. a) what should be the mass of the absorber added to the machine so that the natural frequency falls outside the working range? b) after a first trial of an absorber using a mass of 35 kg, the amplitude of the oscillation was found to be 10 cm. what is the value of the rotating unbalance? c) using me-3.5 kg.m, find the optimal absorber (by minimizing its mass). what would be the amplitude of the oscillation of the absorber?
Answers: 1
You know the right answer?
If a number of turns in a coil is 100 turns and the reluctance of this coil is 1000 au/wb. if the co...
Questions
question
Mathematics, 29.04.2021 18:10
question
Advanced Placement (AP), 29.04.2021 18:10
question
Computers and Technology, 29.04.2021 18:10
question
Mathematics, 29.04.2021 18:10
question
Mathematics, 29.04.2021 18:10
question
Spanish, 29.04.2021 18:10
question
Mathematics, 29.04.2021 18:10
question
Spanish, 29.04.2021 18:10
Questions on the website: 13722360