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1) Which has greater efficiency DC Machine operating as MOTOR or GENERATOR ?
2) What happens when an AC supply is given to a DC Machine ? Explain
A DSSS-CDMA signal has a chip sequence that is 10,000 chips in length. The sequence repeats every millisecond. What is the chip rate?
A 60-Hz, single phase source with V= 277 at angle 30 degree volts is applied to a circuit element. Determine the instanaeous power, real power, and reactive power absorbed by determine the source power factor and state lagging or leading.
We will make the follwoing probability assumptions: When team A plays team B, the probability that team A wins is given by: P(A wins) = \(([seed(B)+3]^2)/([seed(A)+3]^2 +[seed(B)+3]^2) \)
Single pole amp. has an open loop gain 10^6 and open loop bandwidth of 10Hz. If the feedback factor =1, calculate the gain and bandwidth after the feedback
Analysing harmonic content of ac voltage waveforms, An a.c. voltage, V, comprises of a fundamental voltage of 100 V rms at a frequency of 120 Hz, a 3rd harmonic which is 20% of the fundamental
a) The input of Hex- to - seven segment decoder is 1010. what will the display show. b) A priority encoder has all inputs activated. Which input will be encoded. Why.
In a certain system, an electrical heating element was found to increase the temperature of a piece of metal 7o for each amp of current. The metal expands 0.004 in./deg and pushes on a load sensor that outputs 1 V/0.003 in.
The receiver uses a 10.7 MHz IF. For cost, power, weight and size reasons, it is desirable to use a single clock oscillator that will provide the frequency reference for the synthesizer, as well as providing the clock for data.
Please list the properties of Discrete Fourier Transform. Explain each property with an example to show what it means physically and explain the physical meaning of Z Transform
A) Convert the following Switch Algebra function into NOR-NOR implementation (Draw the logic and then convert it into NOR-NOR): F = W X + Y Z +W Y Z B) Convert the following Switch Algebra function into NAND-NAND implementation
Two metal plates with an area of 4 cm2 and separation distance of 0.01 cm are used to form a capacitance transducer. If the material between the two plates has a dielectric constant of 2.5 and the dielectric constant of free space is 8.85 pF/m
Write a program that uses the rand_float functions developed to generating sequences of random floating-point values between 4 and 10. Then compare the computed mean and variance to the theoretical values computed.
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