[{"id":170539,"question":"The filament of an electric bulb is made of:
","choices":[{"text":"Nickel
","value":"A"},{"text":"Aluminium
","value":"B"},{"text":"Tungsten
","value":"C"},{"text":"Carbon
","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":170463,"question":"Electric potential and e.m.f.:
","choices":[{"text":"Are the same terms
","value":"A"},{"text":"Are the different terms
","value":"B"},{"text":"Have different units
","value":"C"},{"text":"Both b and c
","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":170462,"question":"Why household appliances should be connected in parallel\r\nwith the voltage source:
","choices":[{"text":"To increase the resistance of the circuit
","value":"A"},{"text":"To decrease the resistance of the circuit
","value":"B"},{"text":"To provide each\r\nappliance the same voltage as the power source
","value":"C"},{"text":"To provide each appliance the same current as the power\r\nsource
","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":170461,"question":"What happens to the intensity or the brightness of the lamps\r\nconnected in series as more and more lamps are added:
","choices":[{"text":"Increases
","value":"A"},{"text":"Decreases
","value":"B"},{"text":"Remains the same
","value":"C"},{"text":"Cannot be predicted
","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":170460,"question":"What is the voltage across a 6 Ω resistor when 3 A of current passes through it:
","choices":[{"text":"2 V
","value":"A"},{"text":"9V","value":"B"},{"text":"18 V","value":"C"},{"text":"36 V","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":170459,"question":"If a dielectric medium is present between two point charges\r\nthem electrostatic force will be:
","choices":[{"text":"Increased
","value":"A"},{"text":"Decreased
","value":"B"},{"text":"Vanishes
","value":"C"},{"text":"Remain same
","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":170458,"question":"The substances which do not have free electrons are called:
","choices":[{"text":"Insulators
","value":"A"},{"text":"Conductors
","value":"B"},{"text":"Semiconductors
","value":"C"},{"text":"None of these
","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":170457,"question":"The electric potential energy per unit charge is called:
","choices":[{"text":"Electric field
","value":"A"},{"text":"Electric potential
","value":"B"},{"text":"Electric intensity
","value":"C"},{"text":"All of above
","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":170456,"question":"A unit of electric charge, equal to the charge of 6.25x1018\r\nelectrons is:
","choices":[{"text":"Electricity
","value":"A"},{"text":"Coulomb
","value":"B"},{"text":"Electric potential
","value":"C"},{"text":"Volt
","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":170455,"question":"Capacitors are mainly used for radio frequency tuning:
","choices":[{"text":"Paper capacitor
","value":"A"},{"text":"Air capacitor
","value":"B"},{"text":"Mica capacitor
","value":"C"},{"text":"Electrolytic capacitor
","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":170453,"question":"A paper capacitor is usually available in the form of:
","choices":[{"text":"Tubes
","value":"A"},{"text":"Rolled foil
","value":"B"},{"text":"Disc
","value":"C"},{"text":"Plates
","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":170452,"question":"A dielectric must be:
","choices":[{"text":"Resistor
","value":"A"},{"text":"Insulator
","value":"B"},{"text":"Good conductor
","value":"C"},{"text":"Semi conductor
","value":"D"},{"value":"E"}],"correctAnswer":2}]