Joint Entrance Examination/AIEEE 2009/Q083 youngs modulus


Welcome to the Highschool Help Forum!

The forum is currently in "Beta" stage of development. You can ask questions and answer/discuss them. The basic functionalities are present. What's required is a more aesthetic look to the Static pages and a more user friendly setup. This will happen over the time gradually as we start creating some content.

The site has a lot of tools, like posting mathematical calculations, images and diagrams; categorizing questions and so on. Having them here is NO GOOD unless you know how to use them. I am thoroughly against compiling a list of these features and then writing about them. As soon as you do not understand how to do something or use a certain feature, report that on "How To"s Section of the forum. Your queries will be answered there.

If you have any ideas/discussion regarding the site/comments, please go to Discussions regarding Highschool Help Forum

Lastly, thanks for joining in the site's development process! It matters!


Browse All Available Categories

Physics: Introductory PhysicsMechanicsHeatWaves and OscillationsElectricity And MagnetismOpticsModern Physics
Mathematics: AlgebraTrigonometryCo-Ordinate (Analytical) GeometryCalculusVectors And 3D GeometryMiscellaneous Topics
Chemistry: General Chemistry and Physical ChemistryOrganic ChemistryInorganic Chemistry
Biology: General BiologyAnatomyPhysiologyBotanyZoology

Reply![1]


Original Question by Vijay Karthik

Here's the question...

Two wires are made of the same material and have the same volume. However wire 1 has cross-sectional area A and wire 2 has cross-sectional area 3A. If the length of wire 1 increases by Δx on applying force F, how much force is needed to stretch wire 2 by the same amount ?

  • (1) 4F
  • (2) 6F
  • (3) 9F
  • (4) F

Posted by Vijay Karthik 13:47, 23 August 2009 (UTC)



What's Up?

Latest discussions on the forum

Mechanics-Help

  1. Joint Entrance Examination/2000 Screening/Q018 Spinning rod with a bead on it, time when it starts slipping
  2. Joint Entrance Examination/2000 Screening/Q027 Wind power turbine relation between wind speed and output power
  3. Joint Entrance Examination/2000 Screening/Q003 A tank with two holes, one square and another round
  4. Joint Entrance Examination/2000 Screening/Q005 Toppling vs Sliding of a cube
  5. Joint Entrance Examination/2000 Screening/Q015 Pendulum sliding on a plane


Physics-Help

  1. User:Thewinster/Sandbox
  2. User:Thewinster/Sandbox/Forum-Watch
  3. Joint Entrance Examination/2000 Screening/Q020 Melting of ice and evaporation - graph
  4. Joint Entrance Examination/2000 Screening/Q018 Spinning rod with a bead on it, time when it starts slipping
  5. Joint Entrance Examination/2000 Screening/Q021 Ionized gas subjected to electric and magnetic fields


a a