What is characteristic impedance? How do you find it by measuring pulses?

do if you only know and thank you

4. Draw a circuit model of a separately excited DC Generator.

A sinusoidal voltage has a value of 100 volts at 2.5 milliseconds and takes 20 milliseconds to complete one cycle. Then find the maximum cost and the time to reach it for the first time.

A very important parameter in AC power circuits is power factor. Explain what “power factor” is, and define its numerical range. It is in the best interest of power distribution systems to maintain the power factors of distant loads as close to unity (1) as possible. Explain why.

Q9. What is the basic principle that a cage winding can be represented by a three-phase winding? Give your explanation.

1-Adiust the function generator to give (10 v p.p )(170) Hz.

(B)-Explain by drawing the change in the direction of current flows through coils at the ideal case of commutation by considering coil B which is the coil under commutation as shown in the figure below. B C 5A SA 5A Armature winding 10 A Commutator 10 A Brush