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An autotransformer with a total of 600 turns has its secondary winding embracing 200 turns. The 600 turns are connectred to a 60Hz, 2400V driving voltage. A load connected to the secondary draws 4.8kVA at 0.6 power factor lagging. Neglecting losses and leakage effects, determine (a) secondary voltage; (b) secondary current; (c) primary current; (d) power conducted; (e) power transformed (f) the instantaneous maximum value of the core flux
A batch process which involves filling a tank with liquid, mixing the liquid and draining the tank, is automated with a PLC. The specific sequence of events is as follows
1- a port device may have multi-byte data input buffers and data output buffers. what are the advantages of these 2- what are the advantages of DAA(Data Access Arrangement) and McBSP ports in DSPs
one question: During each cycle, the velocity v (in mm/s) of a piston is v = 6t - 6t^2, where t is the time (in sec). Find the displacement s of the piston after 0.75 sec if the initial displacement is zero.
contrast the electron and hole drift velocities through a 10-µm layer of intrinsic silicon across which a voltage of 5 V is imposed. Let µn = 1350 cm²/V·s and µp = 480 cm²/V·s.
Calculate the Fourier Transform of f(t) = 5 sinc(-2t/100), and graph the magnitude and phase as a function of f.If the signal of problem 1 is delayed by 0.1 ms. What is the new Fourier Transform. Graph it's magnitude and phase as a function of f.
Determine the Laplace transform of the above signals (use properties of the Laplace transform) including the corresponding region of convergence.
Design a circuit for a combination lock with one input, x, and two outputs, unlock and hint. Output unlock should be 1 if and only if x is 0 and the sequence of inputs received on x at the preceding seven clock ticks was 0110111.
Consider the causal LTI system with system function H(s)=Y(s)/X(s)=1/(s+2)^2 If the input is x(t)=sin(2t) for t>0, find an approximate expression for the response y(t) that is valid for large t.
1.) What is used by the 32Bit STOS instruction to locate the destination location in memory 2.) What 32bit register is changed by EVERY instruction 3.) What is the register is the lowest byte of the D general purpose register
How many voice channels are carried by a E1 transmission given 8 kHz sampling and 8 bit words? Why is an end of frame marker always required in a digital telephony system?
Fuel Cell produces current by using H2. Anode reaction: H2-->2H+ + 2e- Cathode reaction: 4e- + 4H+ +O2 --> 2H2O. The rate at which Hydrogen enter the fuel cell is given as 5 L/min. The temperature is constant at 300K.
The dielectric materials used in real capacitors are not perfect insulators. A resistance called a leakage resistance in parallel with the capacitance can model this imperfection. A 170-F capacitor is initially charged to 100 V
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