[{"id":120086,"question":"The substances whose resistance decreases with the increase in temperature these substances have coefficient of","choices":[{"text":"positive temperature","value":"A"},{"text":"negative temperature","value":"B"},{"text":"absolute temperature","value":"C"},{"text":"zero temperature","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":119930,"question":"The fractional change in resistance per kelvin is known as","choices":[{"text":"temperature coefficient","value":"A"},{"text":"resistance coefficient","value":"B"},{"text":"super temperature","value":"C"},{"text":"critical temperature","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":119928,"question":"If the length of the conductor is double and its cross sectional area is halved, its conductance will","choices":[{"text":"Increase four fold","value":"A"},{"text":"Become one-fourth","value":"B"},{"text":"Become one-half","value":"C"},{"text":"Remains unchanged","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":119927,"question":"The resistivity of a substance depends upon the","choices":[{"text":"length","value":"A"},{"text":"mass","value":"B"},{"text":"area","value":"C"},{"text":"temperature","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":119926,"question":"The SI unit of conductivity is","choices":[{"text":"ohm-m","value":"A"},{"text":"ohm<sup>-1</sup>m<sup>-1</sup>","value":"B"},{"text":"ohm-m<sup>-1</sup>","value":"C"},{"text":"ohm<sup>-1</sup>m","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":119925,"question":"The unit of conductance is","choices":[{"text":"ohm","value":"A"},{"text":"meter","value":"B"},{"text":"mho","value":"C"},{"text":"ohm-meter","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":119924,"question":"The unit of resistivity is","choices":[{"text":"ohm","value":"A"},{"text":"ohm-m<sup>2</sup>","value":"B"},{"text":"ohm-meter","value":"C"},{"text":"ohm-m<sup>-1</sup>","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":119923,"question":"Resistance of a conductor is increased, the currant will","choices":[{"text":"Decrease","value":"A"},{"text":"Increase","value":"B"},{"text":"Remain the same","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":119922,"question":"The resistance of a conductor does not depend on its","choices":[{"text":"mass","value":"A"},{"text":"resistivity","value":"B"},{"text":"length","value":"C"},{"text":"cross-sectional area","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":119921,"question":"Three resistance 500,500 and 50 ohms are connected in series across 555 volts mains. The current flowing through them will be","choices":[{"text":"0.52 A","value":"A"},{"text":"1 mA","value":"B"},{"text":"0.7 mA","value":"C"},{"text":"1.4 A","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":119920,"question":"Three resistors of resistance 2,3 and 6 ohms are connected in parallel, their equivalent resistance is","choices":[{"text":"11.0 ohm","value":"A"},{"text":"1.0 ohm","value":"B"},{"text":"7.0 ohm","value":"C"},{"text":"3.0 ohm","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":119919,"question":"If the resistance of 2 ohm and 4 ohm are connected in parallel, the equivalent resistance will be","choices":[{"text":"6 ohm","value":"A"},{"text":"4 ohm","value":"B"},{"text":"zero ohm","value":"C"},{"text":"1.33 ohm","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":119918,"question":"Resistance of a conductor depends upon","choices":[{"text":"the quantity of current passing through it","value":"A"},{"text":"the voltage applied between its end","value":"B"},{"text":"its dimensions, physical state and nature of its material","value":"C"},{"text":"all of the above","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":119917,"question":"The potential difference across each resistance in series combination is","choices":[{"text":"same","value":"A"},{"text":"different","value":"B"},{"text":"zero","value":"C"},{"text":"none of these","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":119916,"question":"Magnetic effect at a point caused due to flow a current depend upon the","choices":[{"text":"Quantity of current","value":"A"},{"text":"Distance from current","value":"B"},{"text":"Both the quantity of current and distance from current element","value":"C"},{"text":"None of the all","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":119915,"question":"The unit of resistance is","choices":[{"text":"volt","value":"A"},{"text":"ampere","value":"B"},{"text":"ohm","value":"C"},{"text":"coat","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":119914,"question":"Physicist George Simon ohm was a","choices":[{"text":"German physical","value":"A"},{"text":"French physicist","value":"B"},{"text":"Chinese physicist","value":"C"},{"text":"Russian physicist","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":119913,"question":"If we plot graph between potential difference (V) and current (I) obeying ohm's law, it will give us","choices":[{"text":"parabola","value":"A"},{"text":"straight line","value":"B"},{"text":"hyper bola","value":"C"},{"text":"ellipse","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":119912,"question":"What is the current is a 2 x 10<sup>6</sup>ohm resistor having a potential difference of 2 x 10<sup>3</sup>volts?","choices":[{"text":"10<sup>-1</sup>A","value":"A"},{"text":"10<sup>-2</sup>A","value":"B"},{"text":"10<sup>-4</sup>A","value":"C"},{"text":"1 mA","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":119911,"question":"Resistor is a device which convert electric energy to","choices":[{"text":"Heat energy","value":"A"},{"text":"Chemical energy","value":"B"},{"text":"Elastic energy","value":"C"},{"text":"All of the above","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":119909,"question":"If one volt is needed to cause a current of one ampere to flow in a conductor, its resistance is","choices":[{"text":"one ohm","value":"A"},{"text":"one joule","value":"B"},{"text":"one volt","value":"C"},{"text":"one ampere","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":119907,"question":"Ohm's law states that","choices":[{"text":"The current through a resistor is directly proportional to the applied voltage","value":"A"},{"text":"The voltage across a resistor is directly proportional to the current passing through it","value":"B"},{"text":"Resistance is the constant of proportionality between the voltage and current","value":"C"},{"text":"all of these","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":119900,"question":"The electrode connected with the positive terminal of the current source is called","choices":[{"text":"cathode","value":"A"},{"text":"anode","value":"B"},{"text":"electrolyte","value":"C"},{"text":"position","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":119898,"question":"The material in the form of wire or rod or plate which leads the current into or cut of the electrolyte is known as","choices":[{"text":"voltmeters","value":"A"},{"text":"resistance","value":"B"},{"text":"electrode","value":"C"},{"text":"current","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":119834,"question":"Ohm established a relation between","choices":[{"text":"voltage and resistance","value":"A"},{"text":"voltage and charge","value":"B"},{"text":"voltage and current","value":"C"},{"text":"voltage resistance and charge","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":119832,"question":"The ohm's is defined as","choices":[{"text":"1 ampere / 1 volts","value":"A"},{"text":"1 coulomb / 1 volt","value":"B"},{"text":"1 volt / 1 ampere","value":"C"},{"text":"1 volt / 1 coulomb","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":119830,"question":"The relation V = IR represents","choices":[{"text":"Ampere law","value":"A"},{"text":"Faraday's law","value":"B"},{"text":"Ohm's law","value":"C"},{"text":"Len's law","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":119827,"question":"Ohm is the unit of","choices":[{"text":"current","value":"A"},{"text":"capacitance","value":"B"},{"text":"energy","value":"C"},{"text":"resistance","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":119826,"question":"The graphical representation of ohm's law is","choices":[{"text":"hyperbola","value":"A"},{"text":"straight line","value":"B"},{"text":"ellipse","value":"C"},{"text":"parabola","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":119546,"question":"The liquid which conduct current is known as","choices":[{"text":"heating effect","value":"A"},{"text":"chemical energy","value":"B"},{"text":"electrolyte","value":"C"},{"text":"ohm's law","value":"D"},{"value":"E"}],"correctAnswer":3}]