Solved papers for JEE Main & Advanced AIEEE Solved Paper-2004

done AIEEE Solved Paper-2004 Total Questions - 9

• question_answer1) The total current supplied to the circuit by the battery is
  A)
  1A                         
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  B)
  2A          
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  C)
  4A          
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  D)
  6A
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• question_answer2) The resistance of the series combination of two resistances is S. When they are joined in parallel, the total resistance is P. If\[S=nP,\] then the minimum possible value of n is
  A)
  4                             
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  B)
  3             
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  C)
         2             
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  D)
         1
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• question_answer3) An electric current is passed through a circuit containing two wires of the same material, connected in parallel. If the lengths and radii of the wires are in the ratio of 4/3 and 2/3, then the ratio of the currents passing through the wire will be
  A)
  3                                             
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  B)
  1/3        
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  C)
         8/9        
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  D)
         2
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• question_answer4) In a metre bridge experiment, null point is obtained at 20 cm from one end of the wire when resistance\[X\]is balanced against another resistance\[Y\].If\[X<Y,\]then where will be the new position of the null point from the same end, if one decides to balance a resistance of \[4X\]against\[Y\]?
  A)
  50 cm
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  B)
                         80 cm   
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  C)
         40 cm   
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  D)
         70 cm
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• question_answer5) The thermistors are usually made of
  A)
  metals with low temperature coefficient of resistivity
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  B)
  metals with high temperature coefficient of resistivity
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  C)
  metal oxides with high temperature coefficient of resistivity
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  D)
  semiconducting materials having low temperature coefficient of resistivity
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• question_answer6) Time taken by a 836 W heater to heat one litre of water from\[10{}^\circ C\]to\[40{}^\circ C\]is
  A)
  50s    
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  B)
                                         100s                      
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  C)
  150s                      
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  D)
         200s
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• question_answer7) The thermo-emf of a thermocouple varies with the temperature\[\theta \]of the hot junction as\[E=a\theta +b{{\theta }^{2}}\]in volts where the ratio a/b is\[700{}^\circ C\]. If the cold junction is kept at\[0{}^\circ C,\]then the neutral temperature is
  A)
  \[700{}^\circ C\]                              
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  B)
  \[350{}^\circ C\]
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  C)
  \[1400{}^\circ C\]
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  D)
  no neutral temperature is possible for this thermocouple
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• question_answer8) The electrochemical equivalent of metal is\[3.3\times {{10}^{-7}}\,kg/C\]. The mass of the metal     liberated at the cathode when a 3 A current is passed for 2 s, will be
  A)
  \[19.8\times {{10}^{-7}}kg\]       
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  B)
         \[9.9\times {{10}^{-7}}kg\]         
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  C)
         \[6.6\times {{10}^{-7}}kg\]    
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  D)
         \[1.1\times {{10}^{-7}}kg\]
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• question_answer9) A piece of copper and another of germanium are cooled from room temperature to 77 K, the resistance of  
  A)
  each of them increases
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  B)
  each of them decreases
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  C)
  copper decreases and germanium increases
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  D)
  copper increases and germanium decreases
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