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How much does it cost to run a 300 watt refrigerator for one week if the fridge is actively cooling for 1/3 of the time and dormant the rest of the time? Assume the US national average electric rate of $0.12/kWhr.
Calculate the total apparent power absorbed by the load.
A circular capacitor of radius r is made using SiO2 as the dielectric on a silicon wafer. If a trench of depth l is made to replace the circular capacitor with the trench capacitor with trench depth l, find the ratio of the two capacitances.
Problem: A load has 10 A current at a lagging power factor of 50%. Voltage is 120 V, and frequency is 60Hz. What size capacitor must be used to bring power factor to 90%?
A cellular operator using the FDMA technique is allocated a total spectrum of 25 MHz. The system has a channel bandwidth of 60 kHz. It also uses a guard band of 20 kHz. Compute the number of channels that can be simultaneously supported in this wi..
Define Doppler effect as used in ultrasound applications. Quote the equations representing the two cases considered in Doppler effect.
Write a Matlab program to calculate the electric field due to a line of charge of length 1m. a) Describe the line of charge as a collection of point charges centered on the z-axis. Calculate the electric scalar potential of that same line of charge.
Describe the problem itself, the background of the problem,short literature review, the importance of solving that problem, etc.
describe the operation of the series rc circuit. the discussion must address phase angle relationships of current and
For the network of given figure: - Find the current I1, Calculate the power dissipated by the 4-Ω resistor, Find the current I2.
What is electric potential at the center of the circle and What is the electric field (magnitude and direction) at the center of the circle
a. design a half-subtractor circuit with inputs x and y and outputs Diff and B out. the circuit subracts the bits x - y and places thedifference in Diff and the borrow in B out. b. design a full- subtractor circuit with three inputs x,y,B in andtwo..
A full-wave rectifier produces an 80 V peak rectified voltage from a 60 Hz ac source. If 10 µf filter capacitor is used, determine the ripple factor for a load resistance of 10Ω
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