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A distortionless transmission line operating at 125 MHz has characteristic impedance = 40-ohm, attenuation constant = 0.02 Np/m and phase constant = 0.75 rad/m. Find the resistance and inductance per unit length for the line.
A binary channel with capacity 36 k bits/sec is available for PCM voic transmission. If signal is band limited to 3.2 kHz, then what will be the appropriate values of quantizing level L and the sampling frequency.
Write down the expression for the frequency-dependent open-loop gain of an operational amplifier. Sketch the magnitude of the open-loop gain of an operational amplifier as a function of frequency. Explain what is meant by a `single-lag' response o..
The controlled variable in a closed-loop system is the direction of a robot arm. Initially, it is at 50o; then it is commanded to go to 25o. What is the error when the arm position is at 15o
Select an appropriate QAM signal constellation, carrier frequency, and the roll-off factor of a pulse with a raised cosine spectrum that utilizes the entire frequency band. Sketch the system block diagram and the spectrum of the transmitted signal..
A 110 V rms, 60 Hz source is applied to a load impedance Z. The apparent power entering the load is 120 VA at a lagging power factor of 0.707. Calculate the reactive power in the load.
Three resistors R1, R2 and R3 are connected in series and a supply voltage of 240 V. If R2 = 2R1, R3 = 3R1 and the total power taken by the circuit is 480 watts. Calculate the power in each resistor.
design the controller and estimator so that the closed-loop unit step response to a command input has a rise time tr
Write the VHDL architecture file for the Y(5) output only for a 8-to-1 demultiplexer. The inputs are D, the selects S0-S2, and the ouputs Y(0)-Y(7). the select lines are bit_vector types, the data is bit type and the outputs are bit_vector types.
An x-y plane separates two materials. Material 1 covers z 0 region. There is no surface current or charge on the boundary between the two materials.
A pump has a displacement volume of 98.4 cm3. It delivers 0.00152 m3/s of oil at 1000 rpm and 70 bars. If the prime mover input torque is 124.3 N.m, a. What is the overall efficiency of the pump b. What is the theoretical torque required to operate..
When unmodulated the carrier voltage is 75 volts peak. An information (modulating) signal of 15 KHZ with 5 volts peak amplitude causes a frequency deviation of 22.5 KHz. If the load resistor RL= 100 Ohms, determine the following Modulation index
Waves and Strings: compute the tension in the top string (i.e. E string, lowest note) of a properly tuned guitar. You will likely need to spend a couple minutes on the internet to obtain length and any other important properties of the string.
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