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name given to:","choices":[{"text":"NOT gate","value":"A"},{"text":"OR gate","value":"B"},{"text":"NOR gate","value":"C"},{"text":"AND gate","value":"D"},{"text":"XOR gate","value":"E"}],"correctAnswer":1},{"id":151158,"question":"A device which converts Electrical energy into mechanical energy is called as","choices":[{"text":"Transformer","value":"A"},{"text":"Generator","value":"B"},{"text":"Motor","value":"C"},{"text":"All of these","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":151157,"question":"A.C. can be measure with the help of","choices":[{"text":"Nuclear effect","value":"A"},{"text":"Magnetic effect","value":"B"},{"text":"Chemical effect","value":"C"},{"text":"Heating effect","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":151156,"question":"An LED emits light when it is:","choices":[{"text":"Forward biased","value":"A"},{"text":"Reverse biased","value":"B"},{"text":"Operated without battery","value":"C"},{"text":"Operated with heat 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