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Consider the problem of using a low-voltage system to power a small cabin. Suppose a 12-V system powers a pair of 100-W lightbulbs (wiredin parallel).
a. What would be the (filament) resistance of a bulb designed to use 100 W when it receives 12 V?b. What would be the current drawn by two such bulbs if each receives a full 12 V?c. What gage wire should be used if it is the minimum size that will carry the current.d. Suppose a 12-V battery located 80-ft away supplies current to the pair of bulbs through the wire you picked in (c). Find:1. The equivalent resistance of the two bulbs plus the wire resistance to and from the battery.2. Current delivered by the battery3. The actual voltage across the bulbs4. The power lost in the wires5. The power delivered to the bulbs6. The fraction of the power delivered by the battery that is lost in the wires.
A 190-F capacitance is initially charged to 1190V . At t = 0, it is connected to a 1-k resistance. a) At what time t2 has 50 percent of the initial energy stored in the capacitance been dissipated in the resistance
Assume Rayleigh fading channel with BPSK modulation. Using MATLAB, plot bit error probability (BEP) under both coherent and non-coherent detection. Your figures should include plots from both analysis and simulation. Use average SNR (complex) from..
Expand the memory unit to a 32x4 RAM using two 7489ICs ( you might use the HM6116A120 chip for the Multisim Program Simualtion). Use the CS inputs to select between the two ICs. Note that since the data outputs are 3-stated
A 9 GHz parallel polarized wave with an amplitude of 20 V/m is obliquely incident from air (z 0). Theta_i equals a 60-degree angle of incidence.
A closed-loop system has a hold circuit and process as shown below. Determine G(z) when T = 1 and Gp(s) = 2 / (s + 2). A sampled-data system such as that presented in the above problem has a sampling period T = 0.05s
A sphere of radius 100mm has a charge 4 C uniformly distributed throughout its volume. Find the magnitude of the electric field at distance 100.1 mm from the centre of the sphere.
a magnetic circuit has a mean length of 0.80 m, a cross-sectional area of 0.06 m^2, and a relative permeability of 2167. connecting its 340-turn 64-ohm magnetizing coil to a DC circuit causes a 56-V drop across the coil. determine the flux density..
Two delta-connvected loads are connected in parallel and powered by a balanced Y-connected system. The small of the two loads draws 10k VA at a lagging Power Factor (PF) of 0.75, and the larger draws 25k VA at a leading PF of 0.80.
The complex permittivity for bottom round steak is about epsilon = 40(1 - j0.3)*epsilon0(e0) at the operating frequency (2.5 GHz) of a microwave oven. What is the penetration depth
What is the formula for finding the output voltage of a non-inverting summing amplifier with 3 inputs
Design a regulated DC power supply. You will have for input a 110 V input source at a frequency of 60 Hz. The Zener diode to use is the 1N4733A (which is available in the lab). The output voltage is to be 5.1 V with a load resistance above 2.2K.
Using data from the data sheets of the MAX505 DAC, and the various temperature coefficient of DAC errors specified at 25 degrees Centigrade, calculate the total Worst Case Error for a temperature deviation of 45 degrees Centigrade.
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