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A seismograph records the signals arriving from a distant earthquake. If the S waves arrive 12 minutes after the P waves, how far away was the earthquake? Use the speeds found in Example 16.8 (page 722).
Three single phase transformers rated at 100kVA, 13.2kV / 2.4kV are connected in wye -delta on a 3 phase, 18kV line. What is the maximum load that can be connected to the transformer bank
A lossless transmission line, with characteristic impedance of 50Ω and eletrical length of l=0.27λ, is terminated by load impedance 40-j25Ω. Determine voltage reflection coefficient.
A circuit contains two flip-flops connected to a voltagesource of +10 Volts, each flip-flop draws a current of 10 mA during its operation, if we neglect the power dissipation of the remaining circuit, then what will be the overall power dissipatio..
A certain microphone is capable of delivering 0.5V when someone clap their hands at a distance of 20ft. A particular electronic switch has a Thevenin equivalent resistance of 670ohm and requires 100mA to energize.
The Problem: An Electric Heater is connected to a constant 250-V source and absorbs 1000 W. Subsequently, this heater is connected to a constant 210 V source.
Given four 2-μF capacitors, find the maximum value and minimum value that can be obtained by inter connecting thecapacitors in series/parallel combinations.
Explain, in a maximum of 150 words, the mechanisms of natural and forced convection with particular reference to the above non-dimensional groups.
A voltage of 20 u(t) V, where u(t) is the unit step function, is applied to a circuit consisting of the series combination of a 100 KΩ resistor and a 0.01 μFCapacitor. a.) What is the time constant of the series RC circuit
The equivalent circuit parameters are R1=0.48 ohms, X1=0.80 ohms, R2'=0.42 ohms, X2'=0.80 ohms, Xm=30 ohms The motor is operating with slip of 0.04. Find the input current and power factor.
A simple pendulum is taken at a place whe re its separation from the earth's surface is equal to the radius of the earth. Calculate the time period of small oscillations
a certain shunt motor armature has a resistance of 0.07 and a current of 50 amperes at 120 volts. determine the counter emf
Design a first order activehigh pass filter with a high frequency gain of 10 and a cut-offfrequency of 400 Hz. Choose C = 100 nF.Determine Ri and Rf. and Design a Sallen-Key low passfilter with Q = 4 and fo = 5000 Hz.
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