Home
Class 12
PHYSICS
In a motor the electrical power input is...

In a motor the electrical power input is 500 W and the mechanical power output is 0.54 horse power. Heat developed in the motor in 1 h is (assuming that all the electric energy which is not converted to mechanical energy is converted to heat) is

A

`4.18xx10^(4)" cal"`

B

`3.6xx10^(5)" cal"`

C

`8.6 xx10^(4)" cal"`

D

`1.28xx10^(5)" cal"`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • NTA JEE MOCK TEST 63

    NTA MOCK TESTS|Exercise PHYSICS|25 Videos

  • NTA JEE MOCK TEST 65

    NTA MOCK TESTS|Exercise PHYSICS|25 Videos

Similar Questions

Explore conceptually related problems

Heat energy is converted to mechanical energy in

In which of the following mechanical energy is converted to heat energy

A motor converts electrical energy into

A device that converts electric energy into mechanical energy.

Can 10J of mechanical energy be converted to 10J of heat? Justify.

Can a given amount of mechanical energy be completely converted into heat ?

Name the device which converts electrical energy into mechanical energy.

Name the device which converts electrical energy into mechanical energy.

NTA MOCK TESTS-NTA JEE MOCK TEST 64-PHYSICS
  1. Displacement x versus t^(2) graph is shown for a particle. The acceler...

    Text Solution

    |

  2. Find the binding energy of a satellite of mass m in orbit of radius r...

    Text Solution

    |

  3. In a motor the electrical power input is 500 W and the mechanical powe...

    Text Solution

    |

  4. N moles of an ideal diatomic gas are in a cylinder at temperature T. s...

    Text Solution

    |

  5. A metallic ring of mass 2 kg and radius 1 m with with a uniform metall...

    Text Solution

    |

  6. The coordinates of a moving particle at any time't' are given by x = a...

    Text Solution

    |

  7. A man is slipping on a frictionless inclined plane and a bag falls dow...

    Text Solution

    |

  8. A nucleus of mass 20 u emits a gamma-photon of energy 6 MeV. If the e...

    Text Solution

    |

  9. The system shown in figure is in equilibrium . The mass of the contain...

    Text Solution

    |

  10. A light of intensity 16 mW and energy of each photon 10 eV incident on...

    Text Solution

    |

  11. When a large bubble rises from the bottom of a lake to the surface its...

    Text Solution

    |

  12. A beam of diameter 'd' is incident on a glass hemisphere as shown. If ...

    Text Solution

    |

  13. If the height of TV tower is increased by 21%, then the transmission r...

    Text Solution

    |

  14. A steel rod is 4000cm in diameter at 30^(@)C A brass ring has an inter...

    Text Solution

    |

  15. If C,R,L and I denot capacity resitance, inductance and electric curre...

    Text Solution

    |

  16. A polarizer - analyser set is adjusted such that the intensity of llig...

    Text Solution

    |

  17. The ratio between total acceleration of the electron in singly ionized...

    Text Solution

    |

  18. A wooden block of mass 10 g is dropped from the top of a tower 100 m h...

    Text Solution

    |

  19. A stone of mass 1 kg tied to a light inextensible string of lenth L=(...

    Text Solution

    |

  20. A transverse wave propagating along x-axis is represented by: y(x,t)=8...

    Text Solution

    |