[{"id":227257,"question":"Potentiometer is used to.","choices":[{"text":"Compare emf of two cells","value":"A"},{"text":"Detect internal resistance of cell","value":"B"},{"text":"Measure P.D.","value":"C"},{"text":"All of these","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":227256,"question":"Kirchhoff's voltage rule is a way of stating conservation of.","choices":[{"text":"Mass","value":"A"},{"text":"Charge","value":"B"},{"text":"Energy","value":"C"},{"text":"Momentum","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":227255,"question":"Kirchhoff's first rule is the manifestation of the law of conservation of.","choices":[{"text":"Mass","value":"A"},{"text":"Charge","value":"B"},{"text":"Energy","value":"C"},{"text":"Momentum","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":227254,"question":"An ideal current source shall have resistance","choices":[{"text":"Zero","value":"A"},{"text":"Finite but not zero","value":"B"},{"text":"Infinite","value":"C"},{"text":"Depend upon requirement","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":227253,"question":"Which one of the following bulbs has the least resistance.","choices":[{"text":"100 W","value":"A"},{"text":"200 W","value":"B"},{"text":"500 W","value":"C"},{"text":"1000 W","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":227252,"question":"What is the resistance of carbon resistor which has band brown black brown.","choices":[{"text":"100 Ohm","value":"A"},{"text":"1000 Ohm","value":"B"},{"text":"10 Ohm","value":"C"},{"text":"1.0 Ohm","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":227251,"question":"Resistance tolerance of silver band is.","choices":[{"text":"10%","value":"A"},{"text":"6%","value":"B"},{"text":"7%","value":"C"},{"text":"5%","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":227250,"question":"Heat sensitive resistors are called.","choices":[{"text":"resistors","value":"A"},{"text":"Capacitor","value":"B"},{"text":"Thermistors","value":"C"},{"text":"Inductors","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":227249,"question":"A rheostat can operate as.","choices":[{"text":"Amplifier","value":"A"},{"text":"Potential divider","value":"B"},{"text":"Oscillator","value":"C"},{"text":"Transformer","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":227248,"question":"The thermistors convert changes of temperature into.","choices":[{"text":"Light energy","value":"A"},{"text":"Electric voltage","value":"B"},{"text":"Heat","value":"C"},{"text":"Sound","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":227247,"question":"Resistance tolerance for gold colour is.","choices":[{"text":"50%","value":"A"},{"text":"30%","value":"B"},{"text":"20%","value":"C"},{"text":"5%","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":227246,"question":"If the resistance of 500 Ohm have fourth band of silver colour then its upper maximum resistance will be.","choices":[{"text":"600 Ohm","value":"A"},{"text":"550 Ohm","value":"B"},{"text":"450 Ohm","value":"C"},{"text":"400 Ohm","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":227245,"question":"In carbon resistors, then value of Blue colour is.","choices":[{"text":"6","value":"A"},{"text":"7","value":"B"},{"text":"8","value":"C"},{"text":"9","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":227244,"question":"Colour codes are used to calculate the.","choices":[{"text":"Nature of resistor","value":"A"},{"text":"Numerical value of resistance","value":"B"},{"text":"Potential difference","value":"C"},{"text":"Current","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":227243,"question":"A certain wire has a resistance R, the resistivity of an other wire of an identical material with the first, except for twice its diameter is.","choices":[{"text":"1/4 R","value":"A"},{"text":"4R","value":"B"},{"text":"2R","value":"C"},{"text":"Same as R","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":227242,"question":"A substance having the negative temperature co efficient of resistivity out of the following is.","choices":[{"text":"Carbon","value":"A"},{"text":"Iron","value":"B"},{"text":"Tungsten","value":"C"},{"text":"Gold","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":227241,"question":"Resistivity at a given temperature depends upon.","choices":[{"text":"Area of cross section","value":"A"},{"text":"Length","value":"B"},{"text":"Nature of material of conductor","value":"C"},{"text":"Both length and area","value":"D"},{"value":"E"}],"correctAnswer":3}]