Quiz on Smart Robot
{“questions”:{“38j91”:{“id”:”38j91″,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:”Resistivity of a wire depends on\r\n”,”desc”:””,”hint”:””,”answers”:{“lzs8b”:{“id”:”lzs8b”,”image”:””,”imageId”:””,”title”:”length\t”},”4sekn”:{“id”:”4sekn”,”image”:””,”imageId”:””,”title”:”material”},”xjhfd”:{“id”:”xjhfd”,”image”:””,”imageId”:””,”title”:”cross section area”},”mwf2m”:{“id”:”mwf2m”,”image”:””,”imageId”:””,”title”:”material”,”isCorrect”:”1″}}},”1zuiv”:{“id”:”1zuiv”,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:”When n resistances each of value r are connected in parallel, then resultant resistance is x. When these n resistances are connected in series, total resistance is\r\n”,”desc”:””,”hint”:””,”answers”:{“z57jf”:{“id”:”z57jf”,”image”:””,”imageId”:””,”title”:”x \/ n”},”60o7w”:{“id”:”60o7w”,”image”:””,”imageId”:””,”title”:”n2 x”,”isCorrect”:”1″},”bl1ga”:{“id”:”bl1ga”,”image”:””,”imageId”:””,”title”:”rnx”},”o6sva”:{“id”:”o6sva”,”image”:””,”imageId”:””,”title”:”none”}}},”cak7o”:{“id”:”cak7o”,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:”Resistance of a wire is r ohms. The wire is stretched to double its length, then.