Airframe Electrical System Question: Why is bare copper electrical wire not suitable for aircraft use? (Source: FAA AC 43.13-1B/2B)

Airframe Electrical System Question: Why should solid, round conductor wire be avoided in aircraft? (Source: FAA AC 43.13-1B/2B)

Sen 2.5 2.5 A 16,25 kVA, 220/440 V, 60 Hz transformer gave the following test results. Open circuit test (440 V side open): 220 V, 9.5 A, 650 W Short-circuit test (220 V side shorted): 37.5 V, 55 A, 950 W (a) Derive the approximate equivalent circuit in per-unit values. (b) Determine the voltage regulation at full load, 0.8 PF lagging. (c) Draw the phasor diagram for condition (b).

Assume the Fiber Optic manufacturing technique produces minimal/zero defects. Why is it more energy efficient to use fiber-optics for telecommunication cables compared to copper-wires (flowing an electric current)?

5. A coaxial cable, having an inner diameter of 0.025mm and using an insulator with dielectric constant of 2.56, is to have a characteristic impedance of 2000 2. What must be the outer conductor diameter?

Airframe Electrical System Question: In general, describe and draw the construction of shielded electrical wire. (Source: FAA AC 43.13-1B/2B)

Please explain why it is preferable to use coaxial cable rather than twist pair wire.

Which property of the material makes it suitable for the shielding process in electrical equipment. Explain in short.

Airframe Electrical System Question: What is the purpose of shielded electrical wire? (Source: FAA AC 43.13-1B/2B)