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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)?
by finding the relevant air analysis, determine the partial pressure of nitrogen in the athmosphere at 1.00bar.f a sample of air at this pressure and 10°C was put nto a rigid container and then itd temperature raised to 91°C, what would be the pre..
In a balanced three-phase wye-wye system, the load impedance is 4 + j3 . The source has phase sequence abc and Van = 120
Include the unused states in the design, arranging the circuit to switch from any unused state to the 'main sequence' within one clock cycle, and show the state diagram that applies here. Clearly show all the steps of the design procedure used.
Create a program using AsmIDE, which utilizes the Fox 11 68HC11 microcontroller board: Speech timer where max time is 5 minutes Use the switches for:
What are the two possible frequencies to which the local oscillator could be set? What bandwidth should the 10.7 MHz IF amplifier have?
An early code used in radio transmission involved using codewords that consist of binary bits and contain the same number of 1s. Thus, the 2-out-of-5 code only transmits blocks of 5 bits in which 2 bits are 1 and the others 0.
An overhead line with an inductance of 1.33 mH/km and capacitance of 8.34 nF/km is connected to an underground cable with an inductance of 0.266 mH/km and capacitance of 166 nF/km.
1.Convert 5EDA into binary number. What makes base 16 (Hexadecimal) an attractive numbering systems for representing values in computers 2. What is 4365 - 3412 when these values represent unsigned 12-bit octal numbers
A sequential circuit has two inputs w 1 and w 2 , and an output, z. Derive a suitable circuit for the given condition.
An amplifier is to have an input of 100watts. Its effeciency is 75%, what is the maximum ambient temperature wherein this amplifier may be placed with a maximum junction temperature of 200degC and a junction to case thermal resistance.
Implement a high-speed multiplier which will multiply two 2-bit binary numbers (B1B0 and C1C0) using a 16X4 PROM (lookup table implementation). List the content of all the memory locations in the PROM and describe the operation.
Suppose that a voice signal normally occupies 30 kHz of bandwidth and has a signal-to-noise ratio of 20 dB. Spread-spectrum techniques are used to increase its bandwidth to 2 MHz. (a) What is the signal-to-noise ratio of the spread signal
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