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A PM stepper motor has six poles and a bipolar supply (i.e., the current into each coil pair can be either positive or negative). Figure 18.9 depicts a four-pole stepper motor as an example; the motor described in this problem has two additional poles. The spacing between the poles is uniform. Determine the size of the smallest achievable step in degrees.
A particular load has a pf of 0.8 lagging. The power deliveredto the load is 40 kW from a 270-V rms 60-Hz line. What value ofcapacitance placed in parallel with the load will raise the pf to0.9 lagging
Using mesh analysis and determinants, write a program to solve for both mesh currents of the network of given figure (for any component values).
A line of charge with line charge density PI C/m is placed at the center of the inner shell. Calculate the magnitude and direction of the polarization vector inside the two dielectrics.
1. add 12ten to 15ten in binary and then subtract 12ten from 15ten in binary.2. using 4-bit numbers to save space
The resistance is 0.03 Ohms per phase per km and the line inductance is 0.7 millihenry per phase per km.- calculate the sending in voltage-the voltage regulation.
The voltage across the load must remain between 4.7 and 5.0 V for all values of load current. Design a voltage-divider network to supply the load. You may assume that resistors of any value desired are available.
An AB latch operates as follows: If A = 0 and B = 0, the latch state is Q = 0; if either A = 1 or B = 1 (but not both), the latch output does not change; and when both A = 1 and B = 1, the latch state is Q = 1.
Sketch the output voltage of the circuit shown in Figure to scale versus time. Sometimes, an integrator circuit is used as a (approximate) pulse counter. Suppose that the output voltage is -10 V. How many input pulses have been applied?
Draw a schematic of the set up and calculate the force on the bar.
What is dither in audio signal processing?
Determine power series values for common scientific and engineering functions and Obtain the Maclaurin series for the following functions. State the values of the x which the series converge.
a positive-sequence shunt admittance y= j4.4* 10-6 S/km. for this line if it has 70% shunt reactive (inductors) compensation and 40% series capacitive compensation. Half of this compensation is installed at each end of the line.
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