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1. If the resistor Radj is adjusted to 175Ω what is the rotational speed of the motor at no-load conditions?
2. Assuming no armature reaction, what is the speed of the motor at full load? What is the speed regulation of the motor?
3. If the motor is operating at full load and if its variable resistance Radj is increased to 250 Ω, what is the new speed of the motor? Compare the full-load speed of the motor with Radj = 175Ω to the full-load speed with Radj = 250Ω.
If the earth is considered to be a metal sphere(radius˜6371[km]), how much charge Q must bedeposited on its surface in order for an arc to be established inthe air. If the earth's surface was charged to the value byremoving all the electrons from ..
What is the path attenuation between transmitter and receiver at a frequency of 1.2 GHz and a distance of 11,000. Given: f = 1.2GHz d = 11,000 mi. Calculate the path attenuation; dB = 37dB + 20 log f + 20 log d = 37 + 20 log 1.2^9 + 20 log 11,000
An infinite sheet of uniform (constant) charge density (rho)s0 [C/m^2] is situated coincident with the x-y plane at z = 0. The sheet has a hole of radius a centered at the origin. Find the electric field vector at points along the z-axis.
a) Three delta-connected absorb 60 KW when connected to a 3 phase line. IF they are reconnected in wye, calculate the new power absorbed. b) Three 10uF capacitors are connected in wye across a 2300v, 60 Hz line.
A battery has an internal resistance of 0.029-ohm and an emf of 9.00 V. What is the maximum current that can be drawn from the battery without the terminal voltage dropping below 8.60 V
1. Calculate the length of time it takes for a signal to pass down an Ethernet bus that is 300 m in length, assuming the velocity factor of the cable is 0.66. 2. For the Ethernet bus in problem 1 and a communication rate of 10 Mb/s
Calculate the output resistance of the device, dIC/dVC, for 0
A uniform (constant) volume charge density RHOvo [C/m^3] exists inside of a cylinder of radius a and height h. The cylinder is centered at the origin, with the cylinder axis running along the z axis.
Derive the three-term error correction formula. Include the appropriate signal flow graphs in all of your derivations. Hint: The one-term and both two-term error models are simplifications of the threeterm error model.
The known quantities in given series RL circuit are asfollows: resistance equals 8-ohm, inductive reactance equals 39?current equals 3A, and the applied voltage is 120- volts 60 Hz.Determine the following unknown quantities
A HCS12 ATD is set to 8-bit unsigned mode. A temperature sensor measuring 0 to 100 degrees with an output of 25 mV/degree is attached to the input. The ATD low voltage reference is attached to ground and the high voltage reference
design a logic program that will track the activity for one turnstile. there will be three inputs PHASEA, B and RESET. there will be no output. the program should be able to track 999 total guests.
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