[{"id":170405,"question":"<p class=\"MsoNormal\">Electroscope is used for detecting:<o:p></o:p></p>","choices":[{"text":"<p class=\"MsoNormal\">Current<o:p></o:p></p>","value":"A"},{"text":"<p class=\"MsoNormal\">Charge<o:p></o:p></p>","value":"B"},{"text":"<p class=\"MsoNormal\">Voltage<o:p></o:p></p>","value":"C"},{"text":"<p class=\"MsoNormal\">Resistance<o:p></o:p></p>","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":170403,"question":"Capacitors are used to store:","choices":[{"text":"Current","value":"A"},{"text":"Voltage","value":"B"},{"text":"Charge","value":"C"},{"text":"Resistance","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":170402,"question":"<p class=\"MsoNormal\">To protect the gold leaves of electroscope from the external\r\nelectric disturbances, the aluminum foil is grounded by a thin wire, which is\r\nmade up of:<o:p></o:p></p>","choices":[{"text":"<p class=\"MsoNormal\">Aluminum<o:p></o:p></p>","value":"A"},{"text":"<p class=\"MsoNormal\">Silver<o:p></o:p></p>","value":"B"},{"text":"<p class=\"MsoNormal\">Copper<o:p></o:p></p>","value":"C"},{"text":"<p class=\"MsoNormal\">Brass<o:p></o:p></p>","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":170401,"question":"<p class=\"MsoNormal\">The value of K in SI unit is:<o:p></o:p></p>","choices":[{"text":"<p class=\"MsoNormal\">9X10<sup>20</sup> Nm<sup>2</sup>C<sup>2</sup><o:p></o:p></p>","value":"A"},{"text":"<p class=\"MsoNormal\">8X10<sup>9</sup>Nm<sup>2</sup>C<sup>2</sup><o:p></o:p></p>","value":"B"},{"text":"<p class=\"MsoNormal\">9X10<sup>9</sup>Nm<sup>2</sup>C<sup>2</sup><o:p></o:p></p>","value":"C"},{"text":"<p class=\"MsoNormal\">10X10<sup>-9</sup> Nm<sup>2</sup>C<sup>-2</sup><o:p></o:p></p>","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":170400,"question":"<p class=\"MsoNormal\">Give the number of factors which affect the ability of a\r\ncapacitor to store charge.<o:p></o:p></p>","choices":[{"text":"2","value":"A"},{"text":"3","value":"B"},{"text":"4","value":"C"},{"text":"5","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":170399,"question":"<p class=\"MsoNormal\">Static electricity can be generated by:<o:p></o:p></p>","choices":[{"text":"<p class=\"MsoNormal\">Lubrication<o:p></o:p></p>","value":"A"},{"text":"<p class=\"MsoNormal\">Friction<o:p></o:p></p>","value":"B"},{"text":"<p class=\"MsoNormal\">Motion<o:p></o:p></p>","value":"C"},{"text":"<p class=\"MsoNormal\">Smaller the objects<o:p></o:p></p>","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":170398,"question":"<p class=\"MsoNormal\">In variable capacitor, dielectric medium is:<o:p></o:p></p>","choices":[{"text":"<p class=\"MsoNormal\">Paper<o:p></o:p></p>","value":"A"},{"text":"<p class=\"MsoNormal\">Air<o:p></o:p></p>","value":"B"},{"text":"<p class=\"MsoNormal\">Mica<o:p></o:p></p>","value":"C"},{"text":"<p class=\"MsoNormal\">Ceramic<o:p></o:p></p>","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":170397,"question":"<p class=\"MsoNormal\">SI unit of capacitance is:<o:p></o:p></p>","choices":[{"text":"<p class=\"MsoNormal\">Joule<o:p></o:p></p>","value":"A"},{"text":"<p class=\"MsoNormal\">Volt<o:p></o:p></p>","value":"B"},{"text":"<p class=\"MsoNormal\">Watt<o:p></o:p></p>","value":"C"},{"text":"<p class=\"MsoNormal\">Farad<o:p></o:p></p>","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":170396,"question":"<p class=\"MsoNormal\">1 volt is equal to:<o:p></o:p></p>","choices":[{"text":"<p class=\"MsoNormal\">JC<o:p></o:p></p>","value":"A"},{"text":"<p class=\"MsoNormal\">JC<sup>-1</sup><o:p></o:p></p>","value":"B"},{"text":"<p class=\"MsoNormal\">JC<sup>-2</sup><o:p></o:p></p>","value":"C"},{"text":"<p class=\"MsoNormal\">JC<sup>-3</sup><o:p></o:p></p>","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":170395,"question":"<p class=\"MsoNormal\">SI unit of electric potential is:<o:p></o:p></p>","choices":[{"text":"<p class=\"MsoNormal\">watt<o:p></o:p></p>","value":"A"},{"text":"<p class=\"MsoNormal\">volt<o:p></o:p></p>","value":"B"},{"text":"<p class=\"MsoNormal\">coulomb<o:p></o:p></p>","value":"C"},{"text":"<p class=\"MsoNormal\">joule<o:p></o:p></p>","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":170394,"question":"<p class=\"MsoNormal\">electric intensity is a quantity:<o:p></o:p></p>","choices":[{"text":"<p class=\"MsoNormal\">scalar<o:p></o:p></p>","value":"A"},{"text":"<p class=\"MsoNormal\">vector<o:p></o:p></p>","value":"B"},{"text":"<p class=\"MsoNormal\">base<o:p></o:p></p>","value":"C"},{"text":"<p class=\"MsoNormal\">none of these<o:p></o:p></p>","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":170393,"question":"<p class=\"MsoNormal\">SI unit of electric intensity is:<o:p></o:p></p>","choices":[{"text":"<p class=\"MsoNormal\">Watt<o:p></o:p></p>","value":"A"},{"text":"<p class=\"MsoNormal\">NC<sup>-1</sup><o:p></o:p></p>","value":"B"},{"text":"<p class=\"MsoNormal\">NS<sup>-1</sup><o:p></o:p></p>","value":"C"},{"text":"<p class=\"MsoNormal\">Nm<o:p></o:p></p>","value":"D"},{"value":"E"}],"correctAnswer":2}]