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A light bulb is connected to a 120.0-V wall socket. The current in the bulb depends on the time t according to the relation I = (0.807 A) sin [(272 rad/s)t]. (a) What is the frequency of the alternating current? (b) Determine the resistance of the bulb's filament. (c) What is the average power delivered to the light bulb?
A wave in free space has a wavelength of 12 cm. This wave reaches a material in which the transmitted wave has a wavelength of 8 cm. lEl= 10V/m and lHl= 100 mA/m. Find the frequency of the wave, along with the permitivity and permeability of the m..
A 3 phase Y connected alternator is rated at 1600 KVA, 13500 V. The armature resistance and synchronous reactance are 1.5 ohms and 30 ohms respectively. Calculate the % voltage regulation for a load of 1280 KW at 0.8 leading power factor.
Each pole of a 100kW, 250v flet-compound generator has a shunt field of 2000 turns and a series field of 7 turns. If the total shunt field resistance is 100 ohms
1- a port device may have multi-byte data input buffers and data output buffers. what are the advantages of these 2- what are the advantages of DAA(Data Access Arrangement) and McBSP ports in DSPs
A clever student notices that a high constant loop gain would make the PLL converge in frequency and phase. Rather than use an amplifier with infinite gain the student decides to just use an unstable filter.
If an ice cream cone is 6 inches tall and its rim has a diameter of 2 inches, determine the weight of ice cream that can fit in the cone assuming the ice cream above the cone is a perfect hemisphere.
Consider the two coplanar conductors (infinitely long wire and the conducting rectangular loop) with the given coordinate system. A current I is flowing on the long wire. 1) Find the induced voltage in the rectangular loop if the loop is stationary..
(Probability of negative lifetime is negligible) Lifetime of chip 2 is also a Gaussian RV with mean 22,000 and standard deviation 1000 hours. Which is preferred if the target lifetime of the system is (i) 20,000 hours and (ii) 24,000 hours
Determine the requirements of the digital fiters needed and design and write the dierence equations for the digital fiters.
A new phone company wants to provide very cheap voice-only cell phone capability to 200,000 simultaneous users in San Francisco. They transmit only 8kbs per duplex channel using FDMA (frequency division multiple access) and BPSK (1 bit/Hz).
The response of a LTI system to the input x[n] = (1/4)^n u[n] is y[n]=5(3/4)^n u[n]. A) Find the impluse response h[n] of the system. B) Find the output y[n] for the input x[n] =(1/3)^n u[n].
Determine the expression for the frequency response H(Omega) of a causal IIR LTI discrete-time system characterized by the input-output relation. where |a|
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