[{"id":111166,"question":"Heating effect caused by an electric circuit is written","choices":[{"text":"H = I<sup>2</sup>Rt","value":"A"},{"text":"H = I<sup>2</sup>R","value":"B"},{"text":"H = IR<sup>2</sup>t","value":"C"},{"text":"H = IR<sup>2</sup>","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":111165,"question":"Electric generators which convert mechanical energy into","choices":[{"text":"solar energy","value":"A"},{"text":"thermal energy","value":"B"},{"text":"kinetic energy","value":"C"},{"text":"electrical energy","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":111164,"question":"Solar cell converts sunlight directly into","choices":[{"text":"potential energy","value":"A"},{"text":"thermal energy","value":"B"},{"text":"mechanical energy","value":"C"},{"text":"electrical energy","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":111163,"question":"If a 40 watt light bulb burns for 2 hours. how much heat is generated","choices":[{"text":"288 x 10<sup>3</sup>J","value":"A"},{"text":"288 x 10<sup>8</sup>J","value":"B"},{"text":"288 x 10<sup>5</sup>J","value":"C"},{"text":"288 x 10<sup>6</sup>J","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":111162,"question":"The potential difference across the conductors should be maintained constant by connecting the ends of wire to the terminal of a device called a source of","choices":[{"text":"power","value":"A"},{"text":"current","value":"B"},{"text":"resistance","value":"C"},{"text":"temperature","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":111161,"question":"The speed of randomly moving electrons depends upon","choices":[{"text":"pressure","value":"A"},{"text":"volume","value":"B"},{"text":"temperature","value":"C"},{"text":"mass","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":111160,"question":"The conventional current in a circuit is defined as \" current which passes from a point at higher potential to a point at lower potential as if it represent a movement of","choices":[{"text":"negative charges","value":"A"},{"text":"positive charges","value":"B"},{"text":"protons","value":"C"},{"text":"electrons","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":111159,"question":"The charge carriers in gases are","choices":[{"text":"electrons","value":"A"},{"text":"ions","value":"B"},{"text":"protons","value":"C"},{"text":"ions and electrons","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":111158,"question":"The charge carriers in electrolyte are positive and negative","choices":[{"text":"protons","value":"A"},{"text":"electrons","value":"B"},{"text":"ions","value":"C"},{"text":"none of these","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":111157,"question":"The relation between charge 'Q' and current 'I' is given by","choices":[{"text":"Q = I/t","value":"A"},{"text":"Q = It","value":"B"},{"text":"Q = I<sup>2</sup>t","value":"C"},{"text":"Q = I<sup>2</sup>/t","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":111156,"question":"Which of the following represents an electric current?","choices":[{"text":"C<sup>-1</sup>","value":"A"},{"text":"CS<sup>-1</sup>","value":"B"},{"text":"J.S<sup>-1</sup>","value":"C"},{"text":"dynes<sup>-1</sup>","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":111155,"question":"The SI unit of current is","choices":[{"text":"watt","value":"A"},{"text":"coulomb","value":"B"},{"text":"volt","value":"C"},{"text":"ampere","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":111154,"question":"One coulomb per second is equal to","choices":[{"text":"One volt","value":"A"},{"text":"One ampere","value":"B"},{"text":"One hom","value":"C"},{"text":"One henry","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":111153,"question":"The charge per unit time through any cross-section of a conductor is called","choices":[{"text":"capacitance","value":"A"},{"text":"electric power","value":"B"},{"text":"current","value":"C"},{"text":"potential difference","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":111152,"question":"Free electrons are","choices":[{"text":"tightly bound","value":"A"},{"text":"fixed","value":"B"},{"text":"loosely bound","value":"C"},{"text":"tightly fixed","value":"D"},{"value":"E"}],"correctAnswer":3}]