Home
Class 12
PHYSICS
A refrigerator works between 0°C and 45°...

A refrigerator works between `0°C` and `45°C`.It is required to remove `2000 J` of heat per second in order to keep the temperature of freezer constant.The electric power required is about

A

`110 W`

B

`220 W`

C

`330 W`

D

`260 W`

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

  • Mock Test 40: PHYSICS

    AAKASH INSTITUTE ENGLISH|Exercise Example|29 Videos
  • MOCK TEST 6

    AAKASH INSTITUTE ENGLISH|Exercise Example|365 Videos

Similar Questions

Explore conceptually related problems

A refrigerator works between 4^(@)C and 30^(@)C . It is required to remove 600 calories of heat every second in order to keep the temperature of the refrigerator space constant.The power required is (Take 1calorie= 4.2 J )

Heat required to increases the temperature of 1kg water by 20^(@)C

Heat required to raise the temperature of one gram of water through 1^@C is

The heat required to raise the temperature of a body by 1^(@)C is called

A Carnot refrigerator works between two temperatures of 300 K & 600 K. Find the COP of the refrigerator if heat removed from lower temperature in 300 J.

A carnot engine works between temperatures 327^(@)C and 27^(@)C . If the engine takes 1600 J of heat from the higher temperature reservoir, the work done by the engine per cycle (in Joule) is equal to __________.

A metal piece of mass 50 g at 27^@ C requires 2400 J of heat energy in order to raise its temperature to 327^@ C. Calculate the specific heat capacity of the metal.

Heat required to raise the temperature of 1 mole of a substance by 1^(@) C is called

Refrigerator A works between -10^@C and 27^@C , while refrigerator B works between -27^@C and 17^@C , both removing heat equal to 2000J from the freezer. Which of the two is the better refrigerator?

A refrigerator has to transfer an average of 263J of heat per second from temperature -10^@C to 25^@C . Calculate the average power consumed, assuming no enegy losses in the process.

AAKASH INSTITUTE ENGLISH-MOCK TEST 5-Example
  1. the volume( V) of a polyatomic( non linear molecule) gas varies with...

    Text Solution

    |

  2. an ideal diatomic gas undergoes a polytropic process described by the...

    Text Solution

    |

  3. A refrigerator works between 0°C and 45°C.It is required to remove 200...

    Text Solution

    |

  4. In the given pressure-temperature (P-T) diagram, what is the relation ...

    Text Solution

    |

  5. An ideal gas is expended adiabatically then

    Text Solution

    |

  6. A heat engine works between source and sink temperatures 150°C and 30°...

    Text Solution

    |

  7. An ideal gas at 300K is expanded isothermally to double its volume,the...

    Text Solution

    |

  8. An ideal gas with adiabatic exponent gamma is heated isochorically. If...

    Text Solution

    |

  9. an electric dipole is placed in an electric field generated by a point...

    Text Solution

    |

  10. Two identical balls each having a density rho are suspended from a com...

    Text Solution

    |

  11. A small metallic bob of mass m of a simple pendulum of length L is sus...

    Text Solution

    |

  12. A positive charge q is enclosed by a Guassian spherical surface of rad...

    Text Solution

    |

  13. An electric dipole of dipole moment vec P is lying along uniform elect...

    Text Solution

    |

  14. A wire of length l and charge q is bent in form of a semicircle. The c...

    Text Solution

    |

  15. A non-conducting sphere of radius R is given a charge Q. Charge is uni...

    Text Solution

    |

  16. A parallel plate capacitor with liquid filled between the plates (diel...

    Text Solution

    |

  17. When 20 V battery is connected to a circuit of capacitance (infinite l...

    Text Solution

    |

  18. Four concentric conducting spherical shells A, B, C and D of radii a, ...

    Text Solution

    |

  19. A capacitor is charged with a battery and energy stored is U. After di...

    Text Solution

    |

  20. A carbon resistor has coloured strips as shown in figure. Its resistan...

    Text Solution

    |