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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 lossless transmission line, with characteristic impedance of 50Ω and eletrical length of l=0.27λ, is terminated by load impedance 40-j25Ω. Determine voltage reflection coefficient.
An RLC circuit consists of a 25 mH inductor, a 0.001 µF capacitor and a variable resistor connected in series. The initial charge on the capacitor at t = 0 when the switch is closed is 1 mC. What is the critical resistance Rc for this circuit.
Determine the decimal value of each of the following SIGNED binary number displayed in the 2's complement form: a. 10011001 b. 01110100 c. 10111111
What bit pattern (after you remove the beginning and ending flags and any stuffed bits) will the receiver pass on for higher level processing?
Consider a uniformly charged sphere of radius R1 with a spherical hole of radius R2 displaced a distance x0 from the center. Let ρ be the charge density. a) What is E on the x axis as a function of x
A copper stripline transmission line is to be designed for a 592 OHMS characteristic impedance. The ground plane separation is 1.02 mm and the dielectric constant is 2.20, with tan = 0.001.
An n-bit Gray code is a way to encode numbers 0, 1, ..., 2n-1 in binary such that any two consecutive numbers (including 0 and 2n-1) differ in exactly one bit. For example, {00, 01, 11, 10} is a 2-bit Gray code, and {00, 10, 11, 01} is the only ot..
A parking garage charges a $ 5.00 minimum fee to park for up to three hours and an additional $ 1.00 per hour for each hour over the hours. the maximum charge for any given 24 hours period is $ 2.00.
The small identical conducting spheres have charges of2.0 x 10^-9C and - 0.5 x10^-9 Coulomb respectively. When they are placed 4 cm apart. what is the force between them If they are brought into contact and then separated by 4 cm
If the machine is driven at a speed of 459rpm to act as a generator of real power, find the rotor current referred to the stator and the real and reactive power outputs of the induction machine.
Determine the maximum and minimum values of the magnitude response. How many peaks occur in the magnitude response in the frequencyrange from zero to 2π What are the locations of the peak and dips
A DC source of 48V is connected to one end of the cable. The other end of the cable supplies a DC load. If the load current is 12.5 A, calculate the voltage drop due to the cable resistance and the laod voltage.
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