[{"id":166333,"question":"Current is equal to:","choices":[{"text":"IR<sup>2</sup>","value":"A"},{"text":"CV","value":"B"},{"text":"Q/t","value":"C"},{"text":"IR","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":166332,"question":"Specific resistance of copper is ____________ x 10<sup>-8</sup>Ohm-meter","choices":[{"text":"1.62","value":"A"},{"text":"1.69","value":"B"},{"text":"5.25","value":"C"},{"text":"2.75","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":166331,"question":"Specific resistance of silver = ________ x 10<sup>-s</sup>Ohm-meter","choices":[{"text":"5.25","value":"A"},{"text":"2.75","value":"B"},{"text":"1.69","value":"C"},{"text":"1.62","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":166330,"question":"The resistance of voltmeter is:","choices":[{"text":"zero","value":"A"},{"text":"low","value":"B"},{"text":"Very high","value":"C"},{"text":"10Ω","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":166329,"question":"That period in which voltage repeats its value in equal intervals is called:","choices":[{"text":"cycle","value":"A"},{"text":"Time period","value":"B"},{"text":"Frequency","value":"C"},{"text":"Amplitude","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":166328,"question":"The current which changes its direction is called:","choices":[{"text":"Current","value":"A"},{"text":"A.C.","value":"B"},{"text":"Conventional current","value":"C"},{"text":"D.C.","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":166327,"question":"The current used in houses is:","choices":[{"text":"A.C.","value":"A"},{"text":"Conventiona current","value":"B"},{"text":"Current","value":"C"},{"text":"D.C","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":166326,"question":"The A.C. used in our houses has frequency _____ cycle/sec","choices":[{"text":"60","value":"A"},{"text":"30","value":"B"},{"text":"50","value":"C"},{"text":"130","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":166325,"question":"The unit of power is _________","choices":[{"text":"Volt","value":"A"},{"text":"Watt","value":"B"},{"text":"Joule","value":"C"},{"text":"Coulomb","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":166324,"question":"Joule's law is W = ____________________","choices":[{"text":"IR/t","value":"A"},{"text":"IRt<sup>2</sup>","value":"B"},{"text":"IR<sup>2</sup>t","value":"C"},{"text":"I<sup>2</sup>Rt","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":166323,"question":"How Galvanometer is connected in circuit to detect current?","choices":[{"text":"In Series","value":"A"},{"text":"In Parallel","value":"B"},{"text":"Fixed","value":"C"},{"text":"Variable","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":166322,"question":"Which instrument is used to detect current?","choices":[{"text":"Galvanometer","value":"A"},{"text":"Voltmeter","value":"B"},{"text":"Ammeter","value":"C"},{"text":"Electroscope","value":"D"},{"value":"E"}],"correctAnswer":1}]