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Given the electric field of a 200 MHz uniform plane wave propagating in the z^ direction, where E is parallel to the y axis and reaches a peak value of 150 (mV/m) at t = 0 (s) and z = 0.5 (m).
(a) Write the expression for the electric field of the wave in free space.
(b) Write the expression for the electric field of the wave in polystyrene (µr = 1, er = 2.53).
Assume that we make an enhancement to a computer that improves some mode of execution by a factor of 10. Enhanced mode is used 50% of the time, measured as a fraction of the execution time when the enhanced mode is in use.
Point charges of 5nC and -2nC are located at (2,0,4) and (-3,0,5), respectively. A. Determine the electric field at all points in space. B. Determine the force on a 1nC point charge located at (1,-3,7).
causal LTI discrete system whose transfer function is given by: (H(z) = (z - 0.5) / ((z-e^{ln(0.16/z)})(z-0.2))\) find the impulse response sequence, h[k], for all k. Check initial and final values of the impulse response sequence using appropriate m..
An angle-modulated signal with carrier frequency ωc=2πx106 is described by the equation φEM(t)=10cos(ωct + 0.1sin2000πt). a) Find the power of the modulated signal. b) Find the frequency deviation Δf. c) Find the phase deviation Δφ.
Write a short technical report on Frequency Division Multiplexing
FPGAs are programmed from a compiled HDL description (i.e., a Verilog or VHDL program). What would you have to have in the HDL description to use the global set/reset function in the Spartan FPGA
Consider a permanent-magnet dc-motor with the following parameters: Ra=0.35Ohms, La=1.5mH, Ke=0.5V/(rad/s), Kt=0.5Nm/A, and Jm=0.02kgm^2. The rated torque is 4Nm. This motor is supplies by a switch-mode dc-dc converter
An RLC series circuit has an inductance L = 0.02H, a resistance 40 ohms, and a capacitance of 5(10)^-5 farads, and a constant voltage E(t) = 40 volts. Find the current I(t) if I(0) = 0 and Q(0) = 0 and what is the maximum current
Desing a logic circuit that implements a serial adder/subtracter with accumulator for a 6-bit binary number. you should use one of the imputs to select between the adder and the subtracter. Asumme that negative numbers are represented by 2's compl..
In an electricity experiment, it was observed that as the potential difference in volts across a thin platinum wire increases the current in amperes changes as follows: (V,I)=(0,0), (1.0,0.112), (3.0,0.337), and (6.1,0.675).
The contects of a six-bit register are initially 100101. The register is shifted four times to the right, with the serial input being 1101. What are the contents of the register after each shift
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
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