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1. A 250 m, 2 wire D.C. distributor fed from one end is located uniformly at the rate of 1.6 A/metre. The resistance of each conductor is 0.0002 ohms per metre. Find the voltage necessary at feed point to maintain 250 V
i) At the far endii) At, the mid-point of the distributor
2) Derive an expression for the power loss in a uniformly loaded distributor fed at one end.
The power in watss disspiated by a resistor is given by P=IV. The resistors used are 1 watt resistances i.e. they are capable of dissipating a maximum of 1 watt without overheating. What is the maimum voltage that can be put across a 1 watt, ..
Calculate the total complex power, total current drawn and the total power factor and Y-connected load with an impedance of (1+ j 6) ohm per phase,
A microscope has a 2.70-cm focal length eyepiece and a 0.630-cm objective lens. For a relaxed normal eye (assume a viewing distance of 25.0 cm), calculate the position of the object if the distance between the lenses is 13.5 cm
For comparisons, plot the original speech and the quantized one using 3 bits, 8 bits, and 15 bits.
A 2.0 kg particle moves along the x axis. Its position varies with time according to x = t + 3.0t^3, Where x is in meters and t is in seconds. (a) Find the work done on the particlein the interval t = 0 to t = 1.70s.
A sensor with a nominal resistance of 50 ? is used in a bridge with R1 = R2 = 100 ?, V = 10.0 V, and R3 = 100 potentiometer. It is necessary to resolve 0.1 changes of the sensor resistance. A) At what value of R3 will the bridge null
Assuming that directions of arrival are uniformly distributed at the mobile, how large is the correlation coefficient for a GSM 900 system between the channel in the middle and the end of the burst when the mobile station moves at 200 km/h
The average orbital radius of Neptune is 2.8 billion miles. Given that distance, how long on average does it take light from the sun to reach the planet Neptune in hours (Speed of light in English system = 186,282.4 miles/second)
Consider the problem of using a low-voltage system to power a small cabin. Suppose a 12-V system powers a pair of 100-W lightbulbs (wired in parallel). a. What would be the (filament) resistance of a bulb designed to use 100 W when it receives 12 V
Given a LEO satellite system with a dish gain of 20 dB , orbiting altitude of 789 km, and download frequency of 1626 MHz , what is the satellite's transmitter output power required so that it is received by a wireless phone with 1 pW
The following functions describe the oscillations in electric circuits and the vibrations of machines and structures. Plot these functions on the same plot. Because they are similar decide how best to plot and label them to avoid confusion.
An induction motor has an efficiency of 0.80 when the load is 50 h.p. At this load , both stator copper loss and rotor copper loss are equal to the core losses . The mechanical losses are one -fourth of the no load losses . Calculate the slip.
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