[{"id":170504,"question":"Watt is equal to:
","choices":[{"text":"Coulomb per second
","value":"A"},{"text":"Newton per second
","value":"B"},{"text":"Volt per second
","value":"C"},{"text":"Joule per second
","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":170503,"question":"If 2 joules of energy is required to transfer one coulomb of\r\ncharge from one point to another, the potential difference between these points\r\nwill be:
","choices":[{"text":"1V
","value":"A"},{"text":"2V
","value":"B"},{"text":"4V
","value":"C"},{"text":"6V
","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":170501,"question":"What is the amount of current passing through an electric\r\nheater, if it takes 1800C charge pass through it in 3 minute:
","choices":[{"text":"16 A
","value":"A"},{"text":"10 A
","value":"B"},{"text":"100 A
","value":"C"},{"text":"0.1 A
","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":170498,"question":"The power of small fan is:
","choices":[{"text":"40 W
","value":"A"},{"text":"50 W
","value":"B"},{"text":"60 W
","value":"C"},{"text":"80 W
","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":170496,"question":"the power of washing machine is:
","choices":[{"text":"700 W
","value":"A"},{"text":"750 W
","value":"B"},{"text":"650 W
","value":"C"},{"text":"800 W
","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":170495,"question":"diamond des not conduct electricity, because it has no:
","choices":[{"text":"free electrons
","value":"A"},{"text":"free protons
","value":"B"},{"text":"free neutrons
","value":"C"},{"text":"free positive charge
","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":170494,"question":"A thermistor is a dependent resistors:
","choices":[{"text":"Heat
","value":"A"},{"text":"temperature
","value":"B"},{"text":"energy
","value":"C"},{"text":"mass
","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":170492,"question":"A digital multimeter is used to measure:
","choices":[{"text":"Current
","value":"A"},{"text":"Resistance
","value":"B"},{"text":"Potential difference
","value":"C"},{"text":"All of above
","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":170489,"question":"The equivalent resistance of a parallel combination is:
","choices":[{"text":"Equal to sum of all resistance
","value":"A"},{"text":"Is greater than the largest resistance of combination
","value":"B"},{"text":"Is smaller than the smallest resistance of combination
","value":"C"},{"text":"All of these
","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":170488,"question":"When resistances are connected in series the current passing\r\nthrough them is:
","choices":[{"text":"Different
","value":"A"},{"text":"Zero
","value":"B"},{"text":"The same
","value":"C"},{"text":"None of these
","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":170486,"question":"The property of substance, which opposes the flow of current\r\nthrough it is called:
","choices":[{"text":"Resistance
","value":"A"},{"text":"Reactance
","value":"B"},{"text":"Resistivity
","value":"C"},{"text":"None
","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":170485,"question":"As the temperature of a conductor rises, its resistance:
","choices":[{"text":"Increases
","value":"A"},{"text":"Increases
","value":"B"},{"text":"Decreases
","value":"C"},{"text":"Does not change
","value":"D"},{"text":"None of these
","value":"E"}],"correctAnswer":1}]