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A 2-pole commutator machine,with 100 ampere turns, is runningat 1200 r.p.m. clockwise. The stationary flux of 0.12 Wb. perpole is sinusoidally is distributed in space. The brushes areseparated by an angle θ = 60 degree andthe centre line of brush separation coinsides with field axis.(a) Find the magnitude of e.m.f. across the twobrushes.(b) If the field flux of constant amplitude 0.12 Wb., isassumed to be rotating at 1800 r.p.m., in the (1) Clockwise direction and (2) anticlockwise direction, then compute the magnitude andefficiency of the brush e.m.f. when θ = 60 degree,Also calculate the frequency of conductor e.m.fs in both the cases.(c) The armature at the other end of thecommutator is tapped and connected to balanced 3-Phase voltages, sothat a rotating field is produced, The speed of this rotating fieldis 3000 r.p.m. (1) clockwise and (2) anticlockwise,.Find thefrequency of the brush e.m.f. in the two cases.
The 16giga-byte (GB=2^30 bytes) flash memory chip for an MP3player is 11mm by 15mm by 1mm. This memory chip holds 20,000photos. a) How many photos fit into a cube whose sides are 1mm
120V, 60 Hz source is connected to a distribution line whose resistance, and inductive reactances are 0.1Ohm, j0.2 Ohm, respectively. Single phase, 2HP, 120V, 0.75 lagging pf. motor and 2.4Kw, 120V heater is connected in parallel.
(a) Generate a row vector x of length 40 containing the integers 0, 1, 2, ...39. (b) Generate a row vector y containing 40 values, each of whom is a random real number in the interval [4:5; 7:5]. (c) Produce a new vector v equal to the sum of the two..
Given the narrow audio bandwidth of a telephone transmission facility, a nominal SNR of 56DB and a distortion level of
An electric heater is connected to a constant 240-V source and absorbs 1000 W. Subsequently, this heater is connected to a constant 210-V source. (a) What is the resistance of the heater
A material is found to have a tenth-thickness of 2.3 cm for 1.25-MeV gamma rays. (a) What is the linear attenuation coefficient for this material (b) What is the half-thickness (c) What is the mean-free-path length for 1.25 MeV photons in this materi..
Two line conductors carry currents of 1 A and 2 A respectively. The first conductor is on the x-axis, while the other is parallel to the y-axis, and passes through the point (0, 0, 1 m). Find all points on the z-axis such that Bx = -By.
Create a state transition diagram for a simple state machine to detect a positive pulse. You choose either a Moore or Mealy machine. Write a Verilog HDL module for your state machine.
A binary waveform of 53000 bits/sec is converted into an 8192 level waveform that is passed through a channel with a raised cosine-rolloff filter characteristic with r = 0.33. The channel bandwidth is what
The characteristic equations for a D flip-flop determine that the output Q is updated to either 0 or 1 after each clock cycle. A loadable D flip-flop has one additional input Load that allows data to be stored in the flip-flop for more than a sing..
The Finite-Difference Time-Domain (FDTD) method is a computational electromagnetic technique for solving for the electric and magnetic fields in arbitrary spatial domains in the time domain
Assuming DS = 1200H, BX = 0100H, and SI = 0250H, determine the address accessed by each of the following instructions. Assume real mode operation. (a) MOV [100H], DL (b) MOV [SI+100H], EAX
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