Home
Class 12
PHYSICS
A wire of cross-sectional area A breaks ...

A wire of cross-sectional area A breaks due to its own weight when length of the wire is l. If area of cross-section of the wire is made `3A` then maximum length of the wire can be hung without breaking is

A

`3l`

B

`2l`

C

`1.5l`

D

`l`

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

Similar Questions

Explore conceptually related problems

If the area of cross-section of a resistance wire is halved, then its resistance becomes:

The area of cross-section of a metal wire is doubled, keeping its length same, then its resistance is:

If p is the density of the material of a wire and sigma the breaking stress, the greatest length of the wire that can hang freely without breaking is

When length of a metal wire is doubled and area of cross-section is reduced to half then the resistance will be

When length of a metal wire is doubled and area of cross - section is reduced to half them the resistance will be :

A force F doubles the length of wire of cross-section a The Young modulus of wire is

When length of a metal wire is doubled and area of cross-section is reduced to half, then its resistance becomes

if rho is the density of the meterial of a wire and sigma is the breaking stress. The greatest length of the wire that can hang freely without breaking is

The breaking stress for a wire of unit cross-section is called

AAKASH INSTITUTE-TEST 5-EXAMPLE
  1. Tensile stress is possible in

    Text Solution

    |

  2. A wire has Piosson's ratio 0.3. If the change in the length of the wir...

    Text Solution

    |

  3. A wire of cross-sectional area A breaks due to its own weight when len...

    Text Solution

    |

  4. A boat floating in a lake is carrying a number of cork balls. If the c...

    Text Solution

    |

  5. When two substances of specific gravities d1 and d2 are mixed in equal...

    Text Solution

    |

  6. volume rate flow of a liquid of density rho and coefficient of viscos...

    Text Solution

    |

  7. on heating a cylindrical metallic rod, its length increases by 2% . ...

    Text Solution

    |

  8. the water equivalent of a calorimeter is 50g. This calorimeter is use...

    Text Solution

    |

  9. Steam at 100°C is passed into 100 g of ice at 0°C. Finally when 80g ic...

    Text Solution

    |

  10. A uniform linear thermometer scale is at steady state with its 0 cm ma...

    Text Solution

    |

  11. a spherical body of radius 10cm radiates 300 W at 227°C. If the radius...

    Text Solution

    |

  12. The ends of metal road are maintained at temperature 120°C and 150°C....

    Text Solution

    |

  13. A body cools from 60°C to 50°C in 9 minutes. What will be the temperat...

    Text Solution

    |

  14. For a gaseous system, if heat rejected by the system is 100 J and wo...

    Text Solution

    |

  15. when two bodies A and B are in thermal equilibrium then

    Text Solution

    |

  16. an ideal gas is expanding such that PT=constant. The coefficient of th...

    Text Solution

    |

  17. A system undergoes a reversible adiabatic process. The entropy of the ...

    Text Solution

    |

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

    Text Solution

    |

  19. An ideal gas is expended adiabatically then

    Text Solution

    |

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

    Text Solution

    |