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1) A 2-MHz carrier is modulated by a music signal that has frequency components from 20 Hz to 8 kHz. Determine the range of frequencies generated for the upper and lower sidebands of AM signal.
2) An unmodulaed carrier is 300 Vp-p. Calculate %m when its maximum p-p value reaches 400, 500, and 600V of AM signal.note that modulation percentage is m% = Ei/Ec * 100% where Ei is peak amplitude of the intelligence signal & Ec is peak amplitude of the carrier signal
A permanent magnet dc motor has two poles and a simplex lap winding of 18 loops and 3 turns per loop. The armature radius is 4 cm and the armature length is 15 cm. The flux density under the poles is 0.74 T.
Draw a strain gauge circuit and its external components to attach to a conveyor mounted only at the ends to measure the load at the center of the conveyor. What type of testing would you need to do to establish a baseline and calibration curve for..
There are approximately 109 million TVs in the United States. Each uses, on average, 79 W of power and is turned on for 6.9 hours a day. If electrical energy costs 0.073 dollars per kWh, how much money is spent every day in keeping the TVs turned ..
Design a summing amplifier that produces an output Vout = (5/2)V1+(5/3)V2 - 4V3 . Draw the complete schematic and pick the appropriate component values. The smallest resistor in the circuit should be R
Block diagram and equations for control system water fill, Develop a control system to fill a container with water after it is emptied through a stopcock at the bottom
Make a dimensioned log (p and n) versus x sketch of both the majority and minority carrier concentrations in the quasineutral regions of the device. Identify points 10 and 20 diffusion lengths from the depletion region edges on your sketch.
Determine the hysteresis loss if the apparatus isconnected to a 60 Hz source whose voltage is such as to cause theflux density to be 62 percent of it's rated value. Assume that theSteinmetz exponent is 1.4.
A three phase transformer is constructed from three 3kVA transformer. Secondaries are wired in Delta configuration with a balanced load. What is the maximun combined power that can be delivered to the load
The response of a first order series RL circuit can be represented by a first order linear time-invariant differential equation : d/dt(y) + 4 y= 4 x(t) where the input x(t) is applied across the series circuit and the output is across the resistor
Two points with the coordinates P(2, 5, -1) and Q (3, 0, 4) exists in space. Find the vector form of PQ, the lenght of vector PQ, and the unit vector form of PQ
Design a DC current source to meet the following specifications: - Current source value: 100 u-amps +/- 1% (over all possible load and supply voltage conditions). - Output resistance: >20 Mohms. - Available DC voltage sources are bipolar and range fr..
Design a controller with a 4-bit state register that gets synchronously initialized to state 1010 when an input reset is set to 1.
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