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• AIPMT 2010 Physics

AIPMT 2010 Physics

  

Q. 42. In producing chlorine by electrolysis 100 kW power at 125 V is being consumed. How much chlorine per minute is liberated?

1. 
    
2. 
   
3. 
   
4. 
   
   

Sol. 

Answer : (3)

Q. 43.  If ΔU and ΔW represent the increase in internal energy and work done by the
system respectively in a thermodynamical process, which of the following is true?

1. ΔU = − ΔW, in a adiabatic process
2. ΔU = ΔW, in a isothermal process
3. ΔU = ΔW, in a adiabatic process
4. ΔU = − ΔW, in a isothermal process.

Sol:

   ΔQ = ΔU + ΔW
In adiabatic, ΔQ = 0
            ΔU = − ΔW
In isothermal, ΔU = 0

Answer : (1)

Q. 44.  The device that can act as a complete electronic circuit is:

1. Junction diode
2. Integrated circuit
3. Junction transistor
4. Zener diode

Answer : (2)