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The low-voltage winding of a transformer has 200 turns, and the high-voltage coil has 11,000 turns. The transformer is operated as a step-down transformer, and 13.2KVolts is impressed on the primary side. What is the secondary voltage?
What do they mean by these two statements. For example, are they asking us to keep Voltage or Current constant in either statement and vary the Resistance finding the unknown Voltage or Current or what
A 480-V, 60Hz, 500-hp 0.85-PF-leading eight-pole delta-connected synchronous motor has a synchronous reactance of 0.6 ohms and neglible armature resistance. Ignore its friction, windage and core losses for the purposes of this problem.
For a circuit we would like to implement, there are two control signals: x and y. If xy = 01, an 8-bit value R is incremented by 1 and control goes to a second state. If xy = 10, R is cleared to zero and control goes from the initial state to a th..
Discuss whether this is still true today, and what factors are moving wireless NICs into a more dominant role, if any.
A burst of 8^14 electrons accelerated to an energy of 12 MeV per electron is stopped in a copper target block of mass 180 g. If the block is thermally insulated, what is its temperature rise
Consider LTI system S with impulse response h(t) = u(t) - u(t-2). A) Let x1(t) = d/dt(u(t) - u(t-2)). What is the output of the system B) Let x2(t) = cos(pi*t). What is the output of the system
An angle modulated signal is given by EM(t)=5cos[Wct + 20sin100pi(t) + 10sin2000pi(t)] a. Find the power in the modulated signal b. Find the peak frequency deviation in Hz. c. Find the peak phase deviation in radians. d. Find the bandwidth
A TTL gate with VIH (min) = 2.25 V and VIL (max) = 0.65 V is being driven by a gate with VOH (min) = 2.4 V and VOL (max) = 0.4 V. What is the maximum amplitude of noise spikes that can be tolerated on the inputs in both the HIGH and LOW states
Sketch the complete Nyquist diagram for the following open-loop transfer function. Determine the effect of K on the closed-loop stability. Explain how the "shortcuts" contribute to the diagram.
calculate the minimum sampling interval (time period for counting the pulse train) to achieve a speed resolution of 5 rpm, and the number of bits that must be there in the binary counter if the pulse train is to be sampled with this interval for a..
A GaAs device is doped with a donor concentration of 3e^15/cm^3 . For the device to operate properly, the intrinsic carrier concentration must remain less than 5% of the total electron concentration
The op-amp circuit measures the changes of temperature in a system. The output voltage is given by v0(t) = -R(t)vi(t). Suppose that the temperature in the system changes cyclically after t = 0, so that R(t) = [1 +0.5 cos(20πt)] u(t) and let the in..
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