quiz on magnetic action crossing
{“questions”:{“g2bji”:{“id”:”g2bji”,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:”What causes a magnetic field around a wire?\r\n”,”desc”:””,”hint”:””,”answers”:{“h237x”:{“id”:”h237x”,”image”:””,”imageId”:””,”title”:”A. The thickness of the wire\r\n”},”b9amn”:{“id”:”b9amn”,”image”:””,”imageId”:””,”title”:”B. The material of the wire\r\n”},”59gu7″:{“id”:”59gu7″,”image”:””,”imageId”:””,”title”:”C. The current flowing through the wire\r\n”,”isCorrect”:”1″},”s852o”:{“id”:”s852o”,”image”:””,”imageId”:””,”title”:”D. The voltage across the wire”}}},”984ua”:{“id”:”984ua”,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:”Which of the following correctly shows the direction of a magnetic field around a current-carrying conductor?\r\n”,”desc”:””,”hint”:””,”answers”:{“pvcja”:{“id”:”pvcja”,”image”:””,”imageId”:””,”title”:”A. Along the direction of current\r\n”},”rkxdk”:{“id”:”rkxdk”,”image”:””,”imageId”:””,”title”:”B. Opposite to the direction of current\r\n”},”jorv7″:{“id”:”jorv7″,”image”:””,”imageId”:””,”title”:”C….
