Question: Question: "What can cause negative outcomes when operating a DC motor on AC current?" Context: "Operating at normal power line frequencies, universal motors are often found in a range less than 1000 watts. Universal motors also formed the basis of the traditional railway traction motor in electric railways. In this application, the use of AC to power a motor originally designed to run on DC would lead to efficiency losses due to eddy current heating of their magnetic components, particularly the motor field pole-pieces that, for DC, would have used solid (un-laminated) iron and they are now rarely used." Answer:
Answer: eddy current heating of their magnetic components

Question: Question: "Brandenburg and Bavaria can both be called?" Context: "The percentage of students attending a Gesamtschule varies by Bundesland. In the State of Brandenburg more than 50% of all students attended a Gesamtschule in 2007, while in the State of Bavaria less than 1% did." Answer:
Answer: State

Question: Question: "What are the nematode Caenorhabditis elegans ?" Context: "Because of the great diversity found in animals, it is more economical for scientists to study a small number of chosen species so that connections can be drawn from their work and conclusions extrapolated about how animals function in general. Because they are easy to keep and breed, the fruit fly Drosophila melanogaster and the nematode Caenorhabditis elegans have long been the most intensively studied metazoan model organisms, and were among the first life-forms to be genetically sequenced. This was facilitated by the severely reduced state of their genomes, but as many genes, introns, and linkages lost, these ecdysozoans can teach us little about the origins of animals in general. The extent of this type of evolution within the superphylum will be revealed by the crustacean, annelid, and molluscan genome projects currently in progress. Analysis of the starlet sea anemone genome has emphasised the importance of sponges, placozoans, and choanoflagellates, also being sequenced, in explaining the arrival of 1500 ancestral genes unique to the Eumetazoa." Answer:
Answer:
metazoan model organisms