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Charge vs Potential in Spherical Conductor

4.) On loadin...

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4.) On loading a metal wire of cross section of 10 power -6 m square and length 2m by a mass of 210kg it extends by 16mm and suddenly broke from the point of support. If density of that metal is 8000 kg per m cube and it's specific heat is 420J per kg per K the rise in temperature of wire is

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Q. On loading a metal wire of cross-section

10

^{- 6}

sq.m. and length

2 m

210

kg, it extends by

16

mm and suddenly broke from the point of support. If density of that metal is

8000

^{- 3}

and its specific heat is

420

^{- 1}

^{- 1}

, the rise in the temperature of the wire is :

Q. When a load of

10 k g

is suspended on a metallic wire, its length increase by

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. The force constant of the wire is

Q. A wire having mass per unit length

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g/cm and density

800 k g / m^{3}

suspended rigid support. The stress in the wire if

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kg-wt is attached to free its end is

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3 m

and area of cross-section

0.6 m m^{2}

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6 k g w t

is applied to its free end.

Q. Find the number of free electrons per unit volume of a metallic wire of density

10^{4} {kg/m}^{3}

and atomic mass number

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. The number of free electrons per atom is one.

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