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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.
i need some explanation on Wien Bridge Oscillator with some example ?
Advantages of SDR 1. Easy to upgrade 2. Great flexibility. It can be dynamically updated with new software without any changes in hardware 3. Due to reduced number of har
Suppose we have a coil wound onto a ring of material with relative permeability µ r . Provided that the relative permeability µ r >> 1, then the magnetic flux lines will s
hi PA DS:1234 = AB PA DS:1235 = CD if i typed mov DX,[1234H] WHAT SHOULD I GET IN DX ?
Off line UPS System Again the two switches are used in this type of ups as online ups. The difference is that here the main static switch remains normally ON and UP
STC Set Carry Instruction This instruction sets the carry flag to 1. The instruction format is STC Flags except carry no other flags are affected
The spectrum analyser plots amplitude against frequency, in other words it shows signals in the frequency domain. The spectrum analyser has the same trigger options as the oscillos
Q. Common control switching system? Common Control Switching System: A functional block diagram of a common control switching system is displayed in Figure. Control functions
Prepaid Meters Prepaid metering is a system whereby consumers purchase electricity by a smart card. The amount paid together along with other information is encoded in the sma
(a) "Pulse Code Modulation (PCM), as used in telephony, samples a signal at 8 kHz using 256 quantization levels". i. Outline how this scheme works with the help of sketches and,
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