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An induction motor is powered by 120 Vac at 60 Hz and runs at approximately 1200 rpm. What pole motor must this be?
of resistance 5 and inductive reactance 12 is connected across a supply voltage of 526 30° volts. Determine the active power in the circuit.
Also make sure that the difference between the linear and the non-linear responses can be clearlyseen from the plot. If necessary use the zoom feature in order to show the difference.
A capacitor is made with very large plates separated a distance d. The potential between the plates is V=1000 volts and d = 1mm. a) Calculate the pressure the plates exert on the air between the plates.
If F= 30° and the resultant force acting on the gusset plate is directed along the positive x axis, determine the magnitudes of F2 and the resultant force.
suppose that you wish to offer a voice over ip wireless service. the target packet error rate or drop rate is 103 and
If a diode is constructed from doped silicon at concentrations on the N-side of 10^16 atoms/cm^3 and the P-side of 10^15 atoms/cm^3, compute its built-in potential and the width of the depletion region.
A particular intrinsic semiconductor has a resistivity of 50 -cm at T=300 K and 5 - cm at T=330 K. Neglecting the change in mobility and effective density of states with temperature, determine the bandgap energy of the semiconductor.
Assume that we have an image represents a sinusoidal variation orthogonal to the x-axis with amplitude of 10 and period of 1 cm, that repeats infinitely in all directions within the plane. Further assume an average intensity of 10.
If mechanical input power is increased following synchronization but not field current, prove that the angle between the resultant current and the terminal voltage will always be delta/2. Prove it geometrically with a graph and also via the equati..
A 25KVA single phase transformer has 220 turns on the primary and 80 turns on the secondary. The primary is connected to 1500V, 50Hz supply. Calculate primary and secondary currents on full load secondary EMF and maximum flux in the core
Find the current i1 through a branch connected to a node of an ac circuit, knowing that i1 enters the node and connected to the same node are three other branches carrying the currents: i2 = 14.6 sin(377t - 15°) A, leaving the node,
The impurity is removed with practically no loss of carrier liquid. By local ordinance, a maximum of 100 ppm is allowed in the discharge to a nearby river. The treating process removes all but 10 ppm.
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