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1. What is meant by feedback speed control?
2. How is the magnetic drive used as an adjustable speed drive?
the current through a 1.5 mH inductance is i = 2sin10^(6)t mA. find the voltage v, power p, and stored energy w. Plot them versus 10^(6)t for 0
Explain the structure and nature of the ionosphere with reference to daily, seasonal and long-term changes and explain the modes of propagation of radio waves of different frequencies
suppose that 3 j of work is needed to stretch a spring from its natural length of 26 cm to a length of 42 cm. a how
What is the average yearly per capita energy consumption in the world in kWh if the global power is 15 TW. There are 8760 hours in a year and 6.5 billion people. Express the result as number only without units or comas and use 5 significant fugure..
Design a regulated DC power supply. You will have for input a 110 V input source at a frequency of 60 Hz. The Zener diode to use is the 1N4733A (which is available in the lab). The output voltage is to be 5.1 V with a load resistance above 2.2K.
One of the secondary windings has 3000 turns and carries 2A, and the other secondary winding has 6000 turns and carries 1A. All currents are in phase. Compute the number of turns in the primary winding.
Two vertical forces are applied to a beam of the cross section shown. Determine the maximum tensile and compressive stresses in portion BC of the beam.
A pn junction may be formed by depositing a single crystal film of uniformly doped p-silicon onto a substrate that has been doped n-type. The substrate is 500um thick, and the film is 20um thick. The substrate has a 5 ohm-cm resistivity.
What is the largest peak value of impulse voltage that can be applied to a test object of 10nF - Find the output terminal voltage and the peak-to-peak ripple - What will be the multiplication factor for each of the low voltage voltmeter readings.
Digital Communications uses a few specific modulation formats. Research at least 5 different applications or standards and explain what modulation format is used and what is the bandwidth over which you need to equalize the channel? Determine the ..
A combinational circuit that generates the square of all the combinations of a 3-bit binary number is to be implemented using a PLA. Show the program table for implementing the circuit using the format shown in the text.
a student wraps 100 turns of wire on a pencil that is 7 mm in diameter. the pencil is a nonmagnetic core so has the same permeability as a vacum (4π x 0.00001 H/m). determine the inductance of the coil that is formed.
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