Quiz on magnetic levitation
{“questions”:{“lcf0e”:{“id”:”lcf0e”,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:”What principle does magnetic levitation (maglev) primarily rely on? \r\n”,”desc”:””,”hint”:””,”answers”:{“q2jd8”:{“id”:”q2jd8″,”image”:””,”imageId”:””,”title”:”A) Newton\u2019s Laws of Motion\r\n”},”0ja0i”:{“id”:”0ja0i”,”image”:””,”imageId”:””,”title”:”B) Magnetic repulsion and attraction\r\n”,”isCorrect”:”1″},”g187k”:{“id”:”g187k”,”image”:””,”imageId”:””,”title”:”C) Electrical resistance\r\n”},”ojehi”:{“id”:”ojehi”,”image”:””,”imageId”:””,”title”:”D) Gravitational force\r\n”}}},”qhqrs”:{“id”:”qhqrs”,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:”What is the primary benefit of magnetic levitation in transportation? \r\n”,”desc”:””,”hint”:””,”answers”:{“ykbf9”:{“id”:”ykbf9″,”image”:””,”imageId”:””,”title”:”A) Increased fuel efficiency\r\n”},”rkewc”:{“id”:”rkewc”,”image”:””,”imageId”:””,”title”:”B) Elimination of friction\r\n”,”isCorrect”:”1″},”vioe7″:{“id”:”vioe7″,”image”:””,”imageId”:””,”title”:”C) Reduced speed\r\n”},”rmugk”:{“id”:”rmugk”,”image”:””,”imageId”:””,”title”:”D) Low energy consumption\r\n”}}},”x24hm”:{“id”:”x24hm”,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:”In maglev trains, what creates the lift to elevate the.