QUES: Currents induced into this winding provide the rotor magnetic field. The shape of the rotor bars determines the speed-torque characteristics. At low speeds, the current induced in the squirrel cage is nearly at line frequency and tends to be in the outer parts of the rotor cage. As the motor accelerates, the slip frequency becomes lower, and more current is in the interior of the winding. By shaping the bars to change the resistance of the winding portions in the interior and outer parts of the cage, effectively a variable resistance is inserted in the rotor circuit. However, the majority of such motors have uniform bars.
What determines the properties of speed and torque?

ANS: shape of the rotor bars

QUES: Around 13001350 the Medieval Warm Period gave way to the Little Ice Age. The colder climate resulted in agricultural crises, the first of which is known as the Great Famine of 1315-1317. The demographic consequences of this famine, however, were not as severe as the plagues that occurred later in the century, particularly the Black Death. Estimates of the death rate caused by this epidemic range from one third to as much as sixty percent. By around 1420, the accumulated effect of recurring plagues and famines had reduced the population of Europe to perhaps no more than a third of what it was a century earlier. The effects of natural disasters were exacerbated by armed conflicts; this was particularly the case in France during the Hundred Years' War.
What was the low end of the known death rate of the Black Plague?

ANS: unanswerable

QUES: About 30 people have been indicted for participating in genocide or complicity in genocide during the early 1990s in Bosnia. To date, after several plea bargains and some convictions that were successfully challenged on appeal two men, Vujadin Popovic and Ljubisa Beara, have been found guilty of committing genocide, Zdravko Tolimir has been found guilty of committing genocide and conspiracy to commit genocide, and two others, Radislav Krstic and Drago Nikolic, have been found guilty of aiding and abetting genocide. Three others have been found guilty of participating in genocides in Bosnia by German courts, one of whom Nikola Jorgic lost an appeal against his conviction in the European Court of Human Rights. A further eight men, former members of the Bosnian Serb security forces were found guilty of genocide by the State Court of Bosnia and Herzegovina (See List of Bosnian genocide prosecutions).
What was another charge beyond the act for which Popovic was found guilty?

ANS: unanswerable

QUES: "I have sometimes wondered whether a brain like von Neumann's does not indicate a species superior to that of man", said Nobel Laureate Hans Bethe of Cornell University. "It seems fair to say that if the influence of a scientist is interpreted broadly enough to include impact on fields beyond science proper, then John von Neumann was probably the most influential mathematician who ever lived," wrote Miklos Redei in "Selected Letters." James Glimm wrote: "he is regarded as one of the giants of modern mathematics". The mathematician Jean Dieudonne called von Neumann "the last of the great mathematicians", while Peter Lax described him as possessing the "most scintillating intellect of this century".
What description did Peter Lax use for von Neumann?

ANS:
most scintillating intellect of this century