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1. a nichrome wire 12 ft long and .011 inch diameter conducts 1.83A when 120v are applied. what is the resistivity of nichrome?
2. Copper windings of an electric motor at room temperature of 25 degrees C has resistance of .20(r). after running the motor, the resistance rises to .22(r). what is the temperature of the windings?
3.A) Determine the absolute zero resist. point of a metal if the wire is 50 (r) at 20 degrees C and 51.04 (r) at 150 degrees C.
B) Determine the metals?
4. A) A nichrome wire has 48 (r) at freezing. What is the resistance at the boiling point of water?
B) What is the temperature at which this wire has a resistance of 48.5 (r)?
For the discrete signals defined as the following: x[0]=4, x[1]=1, x[3]=-1, x[n]=0 for all other integers n. v[0]=1, v[1]=-2, v[2]=3, v[3]=-4, v[n]=0 for all other integers n. Compute the convolution x[n]*v[n] for n
A double-A (AA) rechargeable battery is rated at 1.2V, 2100mA-h ( mili-amp hours) 1- how many coulombs of charge can this battery hold 2- how many joules of energy are stored in the battery
The axis of the cylinder is along the z axis, and the electrons are moving with a velocity vector v in the positive z direction. The velocity of the electrons is 0.1c where c is the speed of light (2.99792458 ´ 108 [m/s]). The magnitude of the cur..
A three-phase overhead transmission line has a per-phase resistance of 0.15 ohm/km, and a per-phase inductance of 1.3263 mH/km.
4.What is the fundamental benefit of PLC controls over manual controls 5.Describe the differences between the two methods of scanning during PLC logic solving. Which method holds the advantage over the other
The angle of departure is defined as 180 degrees plus the phase angle of GH computed at the complex pole, but ignoring the contribution of that particular pole.
Mobile IP was intended to work with legacy correspondent hosts and legacy applications. However, some advantages may be gained if correspondent hosts are aware of mobility in certain ways.
Current to Voltage Op Amp Circuit, A 12-bit DAC (Digital to Analogue Converter) gives an output range of 0 to 1 mA for a digital input word of 0 to 4095
Briefly discuss the impact of electron energy, electron current and target on the Bremsstrahlung generated.
A silica fiber has an outer diameter of 125 micro meter. What is the total volume of silica for a 1-km length? This fiber is wound on a spool whose unloaded diameter is 20 em. The spool height is 10 em. Compute the diameter of the fully loaded spo..
PLC 2 In a motor control system, one master stop pushbutton (Stop) is available for stopping the operation at any time. If the temperature switch (TSW) is closed, pressing the red pushbutton (RedPB) will turn on both motors M1 and M2.
A shunt regulator utilizes a zener diode whose voltage is 5.1V at a current of 50 ma and whose incremental resistance is 8 ohms. The diode is fed from a supply of 12 V nominal voltage through a 220 ohm resistor
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