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A single phase semiconverter is operated from 120V 50HZ ac. supply. The load resistance is 10 ohm. If the average output voltage is 25% of the maximum possible average output voltage.
power electronics updated 3.7 years ago by pg1118329 • 0
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An optical fiber has a numerical aperture of 0.20 and a cladding refractive index of 1.59.
need-tagging updated 9.1 years ago by ddigantarroy • 0
8
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Find the displacement thickness, the momentum thickness and energy thickness for the velocity distribution in boundary layer given by, $\frac{\mu}{U}=2(\frac{y}{\delta})- (\frac{y}{\delta})^2.$
fluid mechanics updated 3.9 years ago by phenjoisilab • 0
4
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A catchment has five rain gauge stations. In a year, the annual rainfalls recorded by the gauges are 78.8 cm, 90.2 cm 98.6 cm, 102.4 cm and 70.4 cm.
water resources engineering updated 6.1 years ago by teamques10 ★ 70k
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6.0k
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Design a wide band reject filter having fh=400Hz and FL=2kHz with a pass band gain of 2, also draw the frequency response of it.
linear integrated circuits updated 3.9 years ago by phenjoisilab • 0
3
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4.3k
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Two point charge of equal mass m, charge Q are suspended at a common point by two threads of negligible mass and length l.
electromagnetic field and wave theory updated 4.1 years ago by phenjoisilab • 0
3
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16k
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The first four moments of distribution about the value 4 are -1.5, 17, -30 and 108. Obtain the first four central moments, mean, standard deviation and coefficient of skewness and kurtosis.
engineering mathematics updated 3.8 years ago by pg1118329 • 0
2
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1.4k
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How to find out the mode of operation and write the ALP for the question?
microprocessors and applications updated 8.7 years ago by hrithikp96 • 0
2
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1.3k
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Explain production process of multimedia applications, with an example.
need-tagging updated 8.3 years ago by shamlijadhav1520 • 0
2
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1.5k
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Explain memory management system calls in UNIX?
operating systems updated 3.8 years ago by krithikkm200 • 10
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4.1k
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The line current in amperes in phases a,b,c resp.are (500+j150),(100-j600),(-300-j600).Determine the symmetrical components of current.
power system analysis updated 3.8 years ago by phenjoisilab • 0
2
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1.7k
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Obtain an expression for magnetic vector potential in the region surrounding an infinitely long straight filamentary current 'I'.
electromagnetic field and wave theory updated 4.1 years ago by phenjoisilab • 0
3
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2.7k
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The vector current density is given as $\overline{J}=\frac{4}{r^{2}}\cos\theta\hat{a_{r}}+20e^{-2r}\sin\theta\hat{a_{\theta}}-r\sin\theta\cos\phi\hat{a_{\theta}}\space A/m^{2}$
electromagnetic field and wave theory updated 3.9 years ago by 202101340 • 20
3
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3.2k
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Design an exit taxiway connecting runway and parallel taxiway for total angle of turning as $35^0$ . Turning speed is 80kmph, take coefficient of friction as 0.12. Assume any other data if required
transportation engineering updated 3.6 years ago by phenjoisilab • 0
2
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2.7k
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A regenerative air refrigeration system for an aeroplane is designed to take a load of 25 TR. The temperature and pressure Conditions for atmosphere are 5$^{\circ}$C and 0.85 bar.
refrigeration and air conditioning updated 3.8 years ago by phenjoisilab • 0
1
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1.8k
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Calculate the power required to run the refrigerator in case it produces 1000 kg of ice per hour at $-5^0$C
refrigeration and air conditioning updated 3.8 years ago by pg1118329 • 0
1
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2.3k
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Draw class diagram for given scenario. Show clearly the relationship among participating classes.
object oriented programming updated 3.8 years ago by phenjoisilab • 0
4
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2.0k
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Consider following global schema of an company database who keep track of companys employees, department and projects.
distributed databases updated 3.8 years ago by phenjoisilab • 0
1
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1.6k
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How is directory system useful in file organization? Explain Single level,Two level and Hierarchical directory system?
operating systems updated 3.8 years ago by phenjoisilab • 0
2
votes
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answers
2.1k
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Explain Device independent I/O software.
operating systems updated 3.8 years ago by phenjoisilab • 0
1
vote
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750
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Explain multiuser queueing system with suitable example
computer simulation and modelling updated 3.8 years ago by phenjoisilab • 0
1
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1.4k
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How fluids are classified? Represents different types of fluids on shear stress vs. velocity gradient plot.
fluid mechanics updated 3.9 years ago by phenjoisilab • 0
2
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2.8k
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A pipe 60 mm diameter and 450 m long slopes upwards at 1 in 50 an oil of viscosity $0.9Ns / m^2 $and sp. gr. 0.9 is required to be pumped at the rate of 3 liters/s.
fluid mechanics updated 3.8 years ago by phenjoisilab • 0
3
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3.3k
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Water is flowing through a rough pipe of diameter 500mm and length 4000m at the rate of $0.5 m^3/s$. find the power required to maintain this flow. Take average height of roughness as K=0.40mm
fluid mechanics updated 4.1 years ago by yerasylmakulbe671 • 10
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1.4k
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determine boundary layer thickness, shear stress, drag force, and coefficient of drag in terms of Reynolds Number
fluid mechanics updated 3.9 years ago by krithikkm200 • 10
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