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Two electronics students are discussing electrical units. Student A says that electrical power is measured in units called coulombs. Student B says that the abbreviation 400 k stands for 400,000 volts. Which of the following statements is correct?
A 15-kVA, 8000/230-V distribution transformer has an impedance referred to the primary of 80+j300 ohm. The components of the excitation branch referred to the primary side are Rc= 350k ohm and Xm=70k ohm.
our senior design team is designing a force sensor to measure a force signal and analyze the signal with a microcomputer (binary system). The analog force signal is between 10 N and 70 N and has the frequency bandwidth of DC - 1000 Hz.
A DC circuit has supply voltage 100V, impedance Z= 8+j6Ω. Calculate the stead DC current and power supplied to the circuit
design and build a rectifier circuit and use its result toturn on led( Use 60 Hz, 0.5 to 2 volts peak as a source, setupamplification circuit if needed to turn on led. use transistor todrive led., and also write concluson and explain the analysis.
Let S measure the time-dependent strength of a material under test and So is the initial strength as measured at the beginning of test. Prior tests and evaluations have suggested that the following stress-time relationship appears to work.
Consider a portable 20cm2 fuel cell operating at 0.75V, 0.6 A/cm2. Suppose the stoichiometry of the anode is 2.0 and that of the cathode is 2.3. The fuel cell is expected to run for 3 days before being recharged.
Reduce the two functions given below and implement them using fewest 8x2 ROM's. Draw a neat labeled diagram showing interconnection between the ROM's address and data lines, and content of each ROM.
A 12-V automobile battery has an output capacity of 100ampere-hours (Ah) when connected to a head lamp that absorbs 200watts of power. a) Find the current supplied by the battery.
A three-phase, wye-connected, 220-V, 10-hp, 60-Hz, six-pole induction motor has the following parameters in ohms per phase referred to the stator: R1 = 0.294; R2 = 0.144; Xn = 0.503, X12 = 0.209;XM = 13.25.
Design low pass active filter with a cutoff frequency t at 10kHz or more by 30db and have the pass band gain positive that does not deviate from 20db by more than 3db. The pass band frequency needed is 800Hz and below Derive transfer function
A large number, n, of closely spaced turns of fine wire are wound in a single layer upon the surface of a plastic sphere of radius, R, with the planes of each turn perpendicular to the axis of the sphere and completely covering its surface.
What is the effect of a frequency difference between the carrier and local oscillator on output quality? Show mathematically.
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