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Consider the solenoid shown in Figure, which is typical of those commonly used as actuators for mechanisms and for operating valves in chemical processes. Neglect fringing and the reluctance of the core. Derive an expression for the flux as a function of the physical dimensions, 0, the number of turns N, and the current.
A uniform plane E field, polarized in the x direction travels in the negative y direction in dry earth (Er = 16, Mu(r) = 1) with a phase constant Beta = pi rad/m and an amplitude of 4.0 A/m. If this field has its maximum value at t = 0, y = 2
Clearcly, any noise will pass straight through to the ADC subsystem, introducing measurement error. You have two choices to mitigate this: SW filtering and HW filtering. Assume the uC sample rate, Fs, is 100 Hz with 8 bit resolution.
Design a five section high pass lumped element filter with 1 dB equal-ripple response, a cut-off frequency of 1 GHz and an impedance of 50 Ohms. Plot the amplitude and phase response of the filter.
An electron moves in a force field due to a uniform electric field E and a uniform magnetic field B that is at right angles to E.
You are the forensic accountant for the defendant in the case. What documents and other information will you seek to compute damages?
draw a combinational logic circuit (using AND, OR, etc.) that implements the function. (Note: x is a multiple of 3 if x=i*3 for some integer i.)
A person fishing from a pier observes that 6 wave crests pass by in 7.3 s and estimates the distance between two successive crests to be 3.8 m. The timing starts with the first wave crest and ends with the last.
A 230 V DC series motor has an armature circuit resistance of 0.2 and a eld circuit resistance of 0.1. At rated voltage, the motor draws a line current of 40A and runs at a speed of 1000 rpm.
An AM modulator operates with the message signal: m(t) = 9 cos(20πt) - 8 cos(60πt). The unmodulated carrier is given by 110 cos(200πt), and the system operates with an index of 1/2. a. Write the equation for mn(t), the normalized signal with a mini..
Compare the field at the center of a Helmholtz coil pair and at the center of a solenoid, if both use the same total length of wire and carry the same current.Take the solenoid length equal to the spacing between the Helmholtz coils
1- Find the voltage across the inductor for t > 0 2- Sketch the voltage and the current as a function of time 3- Find the power ( in microwatts) at the terminals of the inductor when t = 200 ms
If the self-imaging planes are 1 cm apart, what is the transverse periodicity of the object. Assume the wavelength of illumination as 1 micron. find the locations of the planes where one can observe contrast reversal.
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