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if maximum frequency audible to a human ear is 20,000 Hz, at what rate must the analog signal from a microphone be sampled when converting it to digital?
The receiver takes the three received bits and decides which bit was sent by taking the majority vote of the three bits. Find the probability that the receiver makes a decoding error.
The voltage drop across a 1 cm long resistor is 10 V. a) Calculate the electric field across the resistor; b) Calculate the work done by the electric field when it pushes a single electron through the length of the resistor
Sketch the unit step response of the system below. Show the magnitude of the steady state on the c(t) axis of your response curve and the value of the time constant on the t axis. T(s)=C(s)/R(s)=5/s+2.5
The battery is made by connecting 5 unit cells in series and then by connecting 6 of these series cells in parallel. Each unit cell has the voltage of 1.25 V and the internal resistance if 2.2 Ohm.
The solutions to Schrodinger's wave equation for a particular situation is given by Psi(x) = sqrt(2/ao)*e-x/ao. Determine the probability of finding the particle between the following limits: (a) 0
How tall must the antennas be if the link operates on a frequency of 2.450Ghz, D1=5miles, D2=11miles, and the obstruction is 60 feet high?
A DC voltmeter is rated at 14 bits of resolution and has a full-scale input range of ±5V. Assuming the meter's ADC is ideal, what is the maximum quantization error that we can expect from the meter.
A cube with an edge of length 2 mm is charged to -1.2 C. Find: a)ρv , if the charge is distributed uniformly over its volume ; b) ρs , if the charge is distributed uniformly on its surface; c)ρL , if the charge is distributed uniformly on the edges o..
A current of 4 A flows through a wire forming a "loop" circle of radius r. If the magnetic field in the center of the "loop" is 10 A, what is the radius along the "loop": a) if the loop consists of a loop of wire, b) if the "loop" consists of 20 t..
a toroidal maganitic core is wrapped with a coil of wire containing 200 turns. the cross sectional area of the core is 10 cmsq,and the mean length around the core is 20 cm. the material permability is 0.001 hy/m. what is the inductance of the devi..
The 16giga-byte (GB=2^30 bytes) flash memory chip for an MP3player is 11mm by 15mm by 1mm. This memory chip holds 20,000photos. a) How many photos fit into a cube whose sides are 1mm
Two inductors with two separate cores are used in parallel in a circuit to share the current. A customer request a design improve by putting the two windings on to the same core. 1. Draw the two windings and resulting magnetic field; 2. If 10 turns..
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