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A semi-infinite nonconducting rod is located on the x-axis from x=0 to x=infinity. The rod has a uniform charge per unit length (lamda). Show that the electric field at point P:(0,-R) makes an angle of 45 degrees with the rod and that this result is independent of the distance R.
The signal to noise ratio at the receiver is required to be at least 17 dB. The average noise power at the receiver is 1 mW. The cable loss between the transmitter and the receiver is 2.5 dB/km
Give three advantages of a three-phase system over a single-phase system There are two basic three-phase connections, the wye connection and the delta connection. Draw a labelled diagram showing the wye connection
Design and realize a digital LP filter using the bi-linear transformation method to satisfy the following characteristics: a- monotonic stopband and passband. b- -3.01dB cutoff frequency of o.5pi rad. c- magnitude down at least 15dB at 0.75pi rad.
Three equal point charges Q form an equilateral triangle of side length a. How much work is needed to move one charge to the position halfway between the other two
The generator voltage is 120 V and the lamp voltage should be 110 V or more. Calculate the current drawn by each lamp if its voltage is 110 V and its power is 100 W. Calculate the current in the two-wire line. Calculate the maximum resistance of t..
Your office has emailed you a service request from one of your regular customers. The office has included all the information it had recieved from the homeowner. it seems they recently planted new shrubs in their yard.
If you have an M/M/Infinity system with arrival rate lambda and service rate mu(µ), how would you show that the expected number of packets in the queue is equal
Compare the noise floor in dBm with the GSM system (BW= 200 kHz) used by the European cell standards (available today in the US thru the AT&T acquired from the Cingular systems) assuming the same noise figure (NF) of 10 dB for the same receivers.
Two large flat charged plates are fixed parallel to one another in a large tank of distilled water (Er=81) with a total surface charge of 41.25×10-7 C on each plate (with opposite polarities). The plates are square, 4 m each side.
where ω0 is a constant, and Y, θ are statistically independent random variables. Assume that Y has a mean value of 3 and a variance of 9, and that θ is uniformly distributed from -π to π. Find the mean and mean-square value of the process.
Design an op-amp amplifier circuit where the smallest resistor available is 10k . The circuit must yield the relationships shown in the following equation: Vout = 8v1 + 8v2 - 4va - 9vb
What do the letters PCM and PAM stand for? Why is PCM transmission preferred over PAM transmission? Give at least two reasons in your answer.
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