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A permanent magnet DC motor has an armature circuit resistanceof Ra = 0.4Ω, a motorconstant KE = KT = 0.5 in MKS units, a motor intertiaof JM = 0.02Kgm2, and a maximum armaturecurrent Iamax = 20A.The motor is mechanically coupled to a load with inertia ofJL = 0.06Kgm2 that requires a constant Torque of 3Nm.Determine:1. The required current that must be applied to the motor to linearly accelerate the load from a speed of 50rad/sec, at t=0, to a speed of 400rad/sec, at steady state in 10seconds.2. At t = 0, determine the applied voltages Va(t=0-) ,and Va(t=0+) and the back emf E.
An Agilent 33220A function generator is set-up to produce an output of v(t)=5+10sin(2 *100t) at the Output connector. a. Describe how you would increase the frequency to get an (open-circuit) output of 5+10sin(2 *2000t) volts
Consider the design of an optimal linear filter for a zero mean WSS random sequence whereby the sample values during the observation window are given by: (-1,0,1,2,3,3,2,1,2,3,1,-1,-2,1,0) 1. Obtain the optimal memory M=2 linear predictor coeffecie..
Let x[n] be a signal and let y[n]=Σx[m], where m is from -∞ to n. If Y(jΩ) =cos2Ω, x[n] consists of exactly four impulses. What are their numerical strength and locations
A 50-KVA, 13,800/208 V -Y distribution transformer has an equivalent phase impedance 114.2+j800 ohm referred to the high voltage side. Take the rated voltage as the base voltage and the rated VA as the based voltampere value.
A sheet of plywood 1.39 cm thick is used to make a cabinet door 55.5 cm wide by 69.5 cm tall, with hinges mounted on the vertical edge. A small 181-g handle is mounted 45 cm from the lower hinge at the same height as that hinge.
1) What is the difference between a continuous spectrum and a line spectrum 2) What is the fundamental difference between a continuous signal and a discrete signal 3) Why are linear time invariant (LTI) systems so important in engineering and enginee..
Consider a 500-gallon tank that needs to be filled when the level goes below 25 gallons and will stop when the level goes above 475 gallonsControl systems can be either open-loop or closed-loop
Assume A is the MSB and B is the LSB. The circuit produces an output of 1 if and only if the sum of the current 2-bit input and the previous 2-bit input is equal to 6. Design the circuit using as few D flip flops as possible. Draw the state diagra..
The battery is made by connecting 5 unit cells in series and then by connecting 7 of these series cells in parallel. Each unit cell has the voltage of 1.25 V and the internal resistance if 3.4 Ohm.
Consider a satellite communication link with a one way propagation delay of 300ms between the sender and receiver, operating at 10Mbps using packets of length 1500bytes. Length of the ACK packet is also 1500 bytes.
A starship of mass (2.0?106 kg) uses its tractor beam to pull a shuttlecraft (2.0?104 kg) aboard from a distance of 10 km away. The tractor beam exerts a constant force of 4.0104 N on the shuttlecraft. Both spacecraft are initially at rest.
The voltage and current at the terminals of the circuit element are zero for t 40s. in the interval between 0 and 40 s the expressions are v=t(1-.025t) V, 0i=4-.2t A, 0 a.)at what instant of time is the power being delivered to the circuit element ..
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