Home
Class 11
PHYSICS
What is energy density of a stretched wi...

What is energy density of a stretched wire?

Text Solution

Verified by Experts

Elastic potential energy stored in the stretched wire per unit volume
Promotional Banner

Topper's Solved these Questions

  • OSCILLATION AND WAVES

    PATHFINDER|Exercise QUESTION BANK|300 Videos

  • ROTATIONAL MECHANICS

    PATHFINDER|Exercise QUESTION BANK|141 Videos

Similar Questions

Explore conceptually related problems

What is elastic potential energy of stretched wire? Show that the energy density of a stretched wire is (Yl^2)/(2L^2) (symbols have their usual meanings).

Potential energy per unit volume of a stretched wire is

The young modules of an wire of length ‘L’ and cross sectional area alpha is y The wire is extended in length within elastic‘limit with a stress's’. Calculate the energy density stored in the wire.

Find an expression for the potential energy in a stretched wire. (Similar question : Find out an expression for the work done by a force in stretching a length of a wire with respect to strain produced in the wire.

A wire of initial length L and area of cross section A has Young's modulus Y of its material. The wire is stretched by a stress 5 within its elastic limit. The stored energy density in the wire will be

Initial length of a wire is L and its area of cross section is A. The wire is elongated by applying a stress tau within its elastic limit. Prove that the potential energy density in the wire due to elongation is (tau^2)/(2Y) [Y=Young's modulus]

One end of an aluminium wire whose diameter is 2.5 mm is welded to one end of a copper wire whose diameter is 2.0 mm. The composite wire carries a steady current of 6.25A. What is the current density in each wire ?

PATHFINDER-PROPERTIES OF BULK MATTER-QUESTION BANK
  1. Write down the dimension of force constant.

    Text Solution

    |

  2. if a spring of force constant K is cut into three equal parts then wha...

    Text Solution

    |

  3. What is energy density of a stretched wire?

    Text Solution

    |

  4. Define Elastic limit.

    Text Solution

    |

  5. Define Perfectly elastic body.

    Text Solution

    |

  6. Define Poisson's ratio. Explain whether it is a modulus of elasticity ...

    Text Solution

    |

  7. State and explain Hooke’s law.

    Text Solution

    |

  8. Define Young's modulus. Mention Its SI unit.

    Text Solution

    |

  9. "Young's modulus of steel is 2.4times10^12 dyne/cm^2"----What do you m...

    Text Solution

    |

  10. Define stress and strain.

    Text Solution

    |

  11. Define volume stress and Bulk modulus.

    Text Solution

    |

  12. Which is more elastic rubber or steel? Explain.

    Text Solution

    |

  13. The length of a wire increases by 8cm when a weight of 5Kg is hung. If...

    Text Solution

    |

  14. A sphere contracts in volume by 0.02% when taken to the bottom of sea ...

    Text Solution

    |

  15. A metal cube of side 10cm is subjected to a shearing stress of 10^4 Nm...

    Text Solution

    |

  16. Find an expression for the potential energy in a stretched wire. (Simi...

    Text Solution

    |

  17. When a stretched wire is snapped it undergoes a change in temperature....

    Text Solution

    |

  18. A wire (Y =2xx10^11N//m^2) has length 1m and area 1mm^2. Calculate the...

    Text Solution

    |

  19. Work done in stretching a wire by 1mm is 2J. Then calculate the work d...

    Text Solution

    |

  20. When a 4kg mass is hung vertically on a light spring that obeys Hooke'...

    Text Solution

    |