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A house has an electric heating system that consists of a 300-W fan and an electric resistance heating element placed in a duct. Air flows steadily through the duct at a rate of 0.6 kg/s and experiences a temperature rise of 7°C. The rate of heat loss from the air in the duct is estimated to be 300 W. Determine the power rating of the electric resistance heating element.
A coil of 10H inductance and 5Ω resistance is connected in parallel with a 20Ω resistor across a 100-V DC supply which is suddenly disconnected. Find The voltage across the 20Ω resistor initially and after 0.3 sec.
Write an Assembly program to find the number of ones in file register location 10H and write a NOS Assembly program that will read 30 values through port B one value at a time.
An RC electric circuit is to have a rise time of one microsecond (1 μs). Select appropriate values of R and C to accomplish this objective.
1) What are some practical op-amp applications Can you give example and explain why the bop-amp was used in your example 2) What is the most common used op-amp in the industry
Suppose station A and B are interconnected through two parallel unreliable links, where each link has a failure probability of 0.1. Calculate the average seconds per day when A and B lose communication.
Determine the system fault kVA and the fault currents at the 415 V and 110 V busbars for short circuit faults on the transformer input or output terminals. Work in p.u. values of impedances.
• Explain the difference between an AC induction motor and an AC synchronous motor. Include in your discussion the differences in motor construction and torque-operating characteristics.
(d) Use the colon operator to create a matrix D by extracting the first through third columns of matrix A. (e) Create a matrix F by extracting the values in columns 2, 3, and 4 and combining them into a single column matrix. (f) Create a matrix G tha..
create a base class called shape.use this class to store two double type value that could be used to compute the
A three phasestar connected alternator with synchronous impedance of 1+j5 ohms per phase is connected to an 11kV system. The alternator power outputis found to be 10MW and reactive power output as 3MVAr.
The time to failure of fluorescent lights in a large office building is exponentially distributed with a failure rate of 0.03125 hours. How many spare tubes must the building custodian maintain to have at least a 0.95 probability of replacing all..
Invesitagtion of Intermodulation through an amplifier, An amplifier is designed to handle frequencies around 9 GHz. The bandwidth of the amplifier is 2 GHz with a center frequency of 9 GHz
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