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1. Distinguish between voltage, as applied to time-varying fields, and potential difference.
2. What is a conservative field? Give two examples of conservative fields.
3. Describe the equipotential surfaces for a point charge.
4. Discuss the determination of the electric field intensity due to a charge distribution by using the potential concept.
In a Wheatstone bridge circuit, precise measurements of very small resistance (0.1 ohm or less) are difficult. List three (3) possible sources of error that are important when measuring small resistances.
Given a system with input x(t) and output y(t) is described by the differential equation: d3y(t)/dt3 + 7d2y(t)/dt2 + 12dy(t)/dt = dx(t)/dt + 4x(t) a. Find the transfer function H(s) and the impulse response, h(t) where Y(s)=H(s)X(s) b. Find the respo..
A 240 V dc motor takes 25 A when running at 945 rpm. The armature resistance is 0.24 W. Determine the no-load speed assuming negligible losses. Flux/pole is constant.
An FM receiver has a Foster Seeley discriminator that has a transfer ratio K = 0.03v/khz. If the maximum IF deviation is 75Khz, what is the maximum output voltage of the discriminator What is the minimum output voltage of the discriminator
For the circuits of given figure, find the voltage across and charge on each capacitor after each capacitor has charged to its final value.
A 600V, 150hp, DC series motor operates at it's full-ratedload at 600 RPM. The armature resistance is 0.12 ohms and the series field resistance is 0.04 ohms. The motor draws 200A at full load.
120V, 60 Hz source is connected to a distribution line whose resistance, and inductive reactance is 0.001Ohm, j0.002 Ohm, respectively. Single phase, 100HP, 120V, 0.85 pf. motor and 100Kw, 120V heater are connected in parallel.
Considure a circular disk in the x-y plane of radius 5.0 cm.Suppose the charge density is a function of radius such thatρs = 12ρ nC/cm2 (when ρis in centimeters). Find the electric field intensity a point 20.0cm above the origin on the z-axis.
If the diode carries a forward current of 100 mA at room temperature, calculate the reverse saturation current and the forward current if the temperature is raised by 50°C.
In fission reactors one deals with neutrons having kinetic energies as high as 10 MeV. How much error is incurred in computing the speed of 10-MeV neu trons by using the classical expression rather than the relativistic expression for kin..
Draw a diagram of the magnitude of the spectrum of the signal, say x(t), at the point right after the high-pass filter.
Design a second-order band-pass filter for a system with sampling frequency of 18 kHz that is tuned for f=5kHZ The filter should not have any sample delay (the numerator and denominator orders are equal) and should have a stability margin of 92%.
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