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Find the electric field intensity E, at (ρ=0,φ=a, z=h) due to a uniformly charged line of line chargedensity of ρLC/m and radius a lying inthe xy plane at z=0.
Stepper motors are often used in low-power servomechanisms such as those found in small robots, computer printers, and other precision electro-mechanical machines. Explain why this type of electric motor is more popular than permanent-magnet DC mo..
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
Semiconductor A has a bandgap of 2.5eV while semiconductor B has a bandgap of 1.5eV. What is the ratio of the intrinsic carrier concentrations in the two materials (niA/niB) at 300K
An op amp with an open-loop gain of 6x10^5 and Vcc = 10V has an output voltage of 3V. If the voltage at the inverting input is -1 μV, what is the magnitude of the noninverting-input voltage
a coaxial cable can carry signals in the range 50mhz to 450mhz. The bandwidth of cable is divided into a numbe of sub-channels each occupying with the guard band, 40mhz of bandwidth. In each channel the guard band takes up 4 mhz
A periodic sequence x[n] with a period N is applied as an input toan Linear Time Invariant discrete-time system characterized by an impulse response h[n] generating an output y[n]. Is y[n] a period sequence If it is, what is its period?
A 600/120V, 60Hz transformer has a primary resistance of 0.4 Ohm, reactance of 0.9 ohm and secondary has a resistance of 0.8 Ohm and reactance of 1.2 Ohm. Find the secondary terminal voltage when it is connected to a load of 1500W at 0.8 lagging p..
a dsp system is given with the following specifications: design requirements: sampling rate 20,000 Hz Maximum allowable gain variation from 0 to 4,000 Hz = 2dB 40dB rejection at the frequency of 16000 Hz
What memory modules are needed if the customer wants 1.25GB of RAM?(What capacities and how many of each capacity?)
Design an opamp circuit to perfom the following mathmatical operations on three seperate ideal voltage sorces, V1, V2, and V3. V0 = 10V1 + 4V2 - 8V3
An FM receiver is modulated with a signal having a baseband bandwidth of 15 kHz and the maximum frequency deviation is 45 kHz. Assume that preemphasis is added with a 3-dB boost frequency of 5 kHz.
constructed using standard value resistors a. Without making a single calculation, which resistive element will have the most voltage across it Which will have the least b. Which resistor will have the most impact on the total resistance.
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