if you mean in your question Why the generated voltage (AC voltage) increased less rapidly as the dc current increases at three phase alternator?
the answer is:
because the magntic material that used in the 3 phase alternator will reach to satruration case of producing the magnatic flux so will happen a knee saturation curve in (I dc) versus (E ac) curve.
Engr. Emad
the birthrate
Efficiency drops off rapidly as you approach the knee of the saturation curve as energy is converted to heat rather than electricity.
Diseases spread more rapidly around the world as human contact between regions increases.
Normally the height of a child is increased according to their feeding capability, their activities like having fun in running here and there gives their body to increase rapidly, According to the doctor's point of view their height increases in the average of almost 2 feet to 3 feet.
A: A transformer is a PASSIVE ac component applying dc to it the wires resistance would be the only limiter for current flow. Usually a common transformer will burn up fast or slowly depends on power applied
It also increases. It increases linearly with stress in the elastic range, then increass more rapidly once the material is plastic ( yielded).
The answer is that the population increases the world wont have enough food for the increased populations and for the grass and if the population increases there wont be any grass left in the world to eat anyways.
they lay eggs
ionosphere
Molecules move more rapidly when heated as their kinetic energy is increased so their speed increases.
The barrier voltage of a diode is 0.7v for silicon and 0.3 for germanium. after this voltage is reached the current starts increasing rapidly... till this voltage is reached the current increases in very small steps...
the birthrate
If the population of a family increases rapidly, the parents can outgrow their home, not have enough money to support the family, have increased food costs, and an increase in medical expense and clothing.
When the curvature of the wing increases, air moving across the top of the wing moves more rapidly. The increased difference in speed between the air above the wing and the air below the wing will help to cause an increased lift on the wing.
Secondary breakdown is a drawback of bipolar junction transistors (BJT's), particularly in power transistors. Simply put, when high current flow causes a build up of electric fields inside of the semiconductor crystal creating "hot spots" which cause the transistor to fail. At the large collector current, the collector to emitter drops. due to drop in voltage,collector current increases in power dessipation. this power dessipation is liocalized in highly concentrated region. In this region temperature increases rapidly. Semiconductor material, regardless if it is P-type or N-type has a negative temperature coefficient meaning that when temperature increases its resistance decreases. Ohm's Law states that Voltage equals Current times Resistance which shows that as resistance decreases current increases. Since Power equals Current times Voltage, if current increases then power increases. A bi-product of power is heat. So, in these hot spots increased current creates heat in a small area which causes resistance to decrease in that area causing higher current flow in that area causing a further increase of heat. The domino effect eventually causes the transistor to fail.
Why world's population has increased rapidly in last hundred years and main problems will cause?
When the temperature of any material is raised, the molocules move more rapidly and are pushed apart from eachother. This increased gap between molocules also increases resistance.