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1) A steel toroid of the dimensions shown in Fig. 1 is wound with a 500 turn coil of wire. What value of current needs to be passed through this coil in order to produce a flux of 250 μ Wb in the toroid, if under these conditions the relative permeability of the toroid is 300.
2) For the circuit in fig 2, i(t) = 4(2- e-10t)mA. If i2(0) = -1mA, find
(a) i1 (0)(b) v(t), v1(t) and v2(t)(c) i1(t) and i2(t)
A quartz crystal microbalance (QCM) was employed in a vacuum deposition process, where a thin film of aluminum was grown over a p-Si wafer. The oscillator frequency at the start of the process was 10.0050 MHz.
A "shift and add" multiplier works as follows: given two n bit numbers X and Y , look at the LSB of X: if it is one, then add Y to the running sum. If it is zero, then don't do anything (since multiplying by 0 is 0!). Next, shift X to the right by..
Calculate the span, offset, step size, resolution, and percentage resolution for an analog range of 0 to 5 volts for 8-bit digital conversion. For such a system calculate the analog output of a D/A with the following digital inputs: $15, $4D, $7E,..
Nyquist sampling rate condition and aliasing Consider the signal: X(t) = sin(0.5)/0.5t a.)Find the Fourier transform X(Ω) of x(t). b.)Is x(t) band limited. If so, find its maximum frequency Ωmax.
the first microprocessors were packaged as a dual inline pin dip integrated circuit. would dip and quad versions have
Design a static CMOS inverter with long channel transistors and a. switching voltage VM of 0.6 VDD. What is the resulting ratio of WP/WN b. switching voltage VM of 0.45 VDD. What is the resulting ratio of WP/WN
Calculate the overall heat transfer coefficient (U) for the assumed tube diameter, finshape and material. Use correlations to estimate hot-and cold-side convectioncoefficients, conduction resistance, contact resistance (if any), and fouling resist..
A disk located at 0
A police K-band radar is operating, with transmit power of 1000 Watts and antenna gain of 300 in linear units. The radar unit is designed to detect a target with a radar cross-section (RCS) of 6 sq. meters and its receiver can detect a signal
A balanced Wye connected load of 15 + j9 Ω/phase is being fed by a Wye connected source. Each of the three lines feeding the load from the source has 0.5 + j0.3 Ω impedance. The voltage at the load is 440 VLL .
An induction motor has thefollowing specifications: a 8-pole squirrel cage rotor, operates at25 hp off of a 220 V line-to-line 3-phase service, 60 Hz, 64 ampsof line current, and under full load runs at 830 RPM. The motor draws 20.8 kW at full loa..
Identify how the existence of interest groups and political parties affect the public opinions of Texans. Is this affect beneficial or hinderances to the prinicipal of local control popular in Texas policy Why
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