41. If two bulbs of 25 W and 100 W rated at 200 V, are connected in series across a 440 V supply

1. 1. 25 W bulb will fuse

   
   
   

   2. 100 W bulb will fuse

   
   
   

   3. None will fuse

   
   
   

   4. Both will fuse

   
   
   

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   N/A

   Correct Option: A

   N/A

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42. Alternating current can be measured by

1. 1. Moving coil galvanometer

   
   
   

   2. Hot wire ammeter

   
   
   

   3. Tangent galvanometer

   
   
   

   4. None of the above

   
   
   

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   N/A

   Correct Option: B

   N/A

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43. When an AC source is connected across a resistor

1. 1. The current leads the voltage in phase

   
   
   

   2. The current legs behind the voltage in phase

   
   
   

   3. The current and voltage are in same phase

   
   
   

   4. None of the above

   
   
   

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   N/A

   Correct Option: C

   N/A

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44. Consider the following statements
    An ordinary light bulb has a rather short life because the
    1. Filament wire is not uniform
    2. Bulb cannot be evacuated completely
    3. Wires supporting the filament melt at high temperatures.
    Which of the above statements are correct?

1. 1. 1 and 3

   
   
   

   2. 2 and 3

   
   
   

   3. 1 and 2

   
   
   

   4. 1, 2 and 3

   
   
   

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   N/A

   Correct Option: B

   N/A

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45. The intensity of a magnetic field is defined as the force experienced by a

1. 1. Standard compass

   
   
   

   2. Unit positive charge

   
   
   

   3. Unit negative charge

   
   
   

   4. Unit north pole

   
   
   

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   N/A

   Correct Option: D

   N/A

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