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[1] If the speed of a DC machine is doubled and the flux remains constant, the generated e.m.f.
(a) remains the same
(b) is doubled
(c) is halved
(d) None of the above
(a)Determine the capacitance of an isolated conducting sphere of radius a in free space (Consider an outer conductor existing at r -> infinity). (b) The sphere is to be covered with a dielectric layer of thickness d and have a dielectric constant o..
(a) Calculate the transformation matrix used to rotate an image by 45o clockwise about the Zaxis. (b) How would you use this transformation matrix to achieve the desired rotation (c) Use the transformation matrix to rotate the image point (x,y) = (0,..
A 3 phase 50hz star connected motor has rotor resistance and stand still reactance of 0.025ohm and 0.35 ohm respectively. The full load slip is 5% calculate the resistance per phase of a star connected rheostat
In the presentation, the presenter, Mr. Rob Tucker discussed three types of disturbance mitigation responses or measures. List the three mitigation types and give a short definition of each of the mitigation type.
1. describe why interrupts are not appropriate for implementing synchronization primitive in multiprocessor systems and
Assume that this whole system is linear, so that, if the pressure on a sprinkler is halved, the area covered (as well as the flow rate) will be halved. This is true until the pressure is reduced below 20psi, at which it does not work at all.
A soccer player kicks a soccer ball of mass 0.45 kg that is initially at rest. The player's foot is in contact with the ball for 1.1 x 10-3 s, and the force of the kick is given by F(t) = [(6.1 x 105)t - (2.3 x 108)t2] N for 0 t 1.1 x 10-3s, where ..
Two loudspeakers, one of them generates sound 400W power the other with 100W. The sound is generated isotropically from each loudspeaker. A listener is seated 20 m from the 100 W loudspeaker and 40 m from the other loudspeaker.
Compare MOSFET devices to BJT devices. Specifically, which devices are minority carrier devices and which devices are majority carrier devices. What impact does this have Also, compare power consumption, speed, integration, and preva- lence.
What are the most common insulators used for extremely high voltages. Explain your answer with, at least, two points foreach insulator. Hint. they can withstand much highertemperatures than rubber insulation.
Consider a 4-bit unipolar binary-weighted D/A converter with v(1)= 1 V, V(0) = 0 V, and Rf= 8R. Obtain the analog output voltage for each of the digital inputs from 0000 to 1111
Assume for now that all components are powered up simultaneously and that event detection is instantaneous. This means that one does not need to consider sampling or processing time. Also, all three sensors are required for unambiguous event detec..
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