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Electrical Fundamentals
1. An aircraft company has decided to replace the copper cables to the main aircraft generators onboard it's Boeing 747s with aluminium cables that are capable of carrying the same current.
a. Describe the effects on the cable with the aircraft at sea level compared to 35,000 feet. Like coefficient of expansion at sea level and on 35,000 feet, resistivity.
2. A parallel plate capacitor was originally constructed using air as the dielectric. For another application, we need to change the dielectric to Mica.
a. Describe fully how this change of dielectric material has affected the capacitor in ALL respects.
a rectangular surge of 2us duration and magnitude of 100Kv travels along a line of surge impedance 500 ohms. The latter is connected to another line of equal impedance through an i
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what is the digital logic circuit for binary divider?
Q. Explain state-variable techniques? The matrix formulations associated with state-variable techniques have largely replaced the block-diagram formulations. Computer software
Write a control word for counter 1 of 8253 / 8254 that selects the following options: load least significant byte only, mode 5 of operation and binary counting. Then write an ins
3-Phase 4 Wire Meters with CT and MD If load is commonly more than 50 A, CT operated meters should be used. It is to be remembered that CTs should be properly selected for acc
Turn-on, turn-off, and storage delay: The Bipolar transistor shows a few delay characteristics while turning on and off. Most of the transistors, and particularly power transi
what is the application of thermodynamics in electrical engineering?
Discuss the advantages and disadvantages of aluminium as compared to copper as a conductor of electricity. Advantages: Aluminium as a conductor of electricity as compared co
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