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A single phase transformer has the following rating: 120 kVA, 2000 V/100 V, 60 Hz with 1000 primary turns. Determine: (a) the secondary turns (b) the rated primary and secondary currents (c) the maximum flux (d) given a maximum flux density of 0.25 T, the cross-sectional area of the core.
A recording trace r(t) is definedas r(t) = s(t) + n(t), where s(t) =10sin(20?t) (i.e., a 10 Hz sine wave, given f= 2f) is the signal and n(t) = sin(120t) (i.e., the 60 Hz electromagnetic noise) the noise.
a) At what time does the peak value of the AC signal occure b) What is the frequency,f,of the AC signal c) What is the period,T,of the AC signal d) At what time does the negitve peak value of the AC signal occur
The average noise power per unit bandwidth measured at the front end of an AM receiver is 10^(-3) watt per Hertz. The modulating wave is sinusoidal, with a carrier power of 80 kilowatts, and a sideband power of 10 kilowatts per sideband.
Two resistances R1 and R2 are connected in series. We know that R1=60 ohms and that the voltage across R2 is three times the value of the voltage across R1. Determine the value of R2.
how to calculate theoretical range when measuring resistance with DMM (amprobe-AM530) how to adjust the tektronics TBS1104 oscilloscope Time/div to a value of 0.5ms the tektronics only let me adjust between o and 1 ms, but nothing in between.
In the United States, coal is a fossil fuel, used mainly to fuel the energy needed for electric power plants to manufacture electricity. The air pollution caused by burning coal has been linked to health problems and concerns for the general popul..
A certain mixer is producing the following frequencies: 900 kHz, 700 kHz, 500 kHz, and 200 kHz. What are the two most likely input frequencies?
Write a main program to call a procedure that converts the Fahrenheit temperature value stored in the location labeled TdegF to its Celsius equivalent. The range of temperatures is 32°F to 212°F. The procedure stores the converted temperature
The resistance per 304.8 m of copper wire uses in the extension cord of AWG 14,12,10,8 and 6 are 2.58,1.62, 1.02, 0.64 and 0.41 respectively. Assume a 2% allowable voltage drop. Show all working .
How the cell potential has been affected in the NH3 or Na2S had been added to the 1M CuSO4 solution instead of the 0.001M CuSO4 solution of the cell? Explain.
1. What is the difference between On-delay and Off-delay timer instructions 2. How are timer instructions reset What happens when an On-delay timer reaches its preset delay time
A pulse width modulation (PWM) circuit works by varying the duty cycle of the square wave while keeping the period fixed.
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