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A force F is required to break a wire of length  and radius r. What force is required to break a wire, of the same material, having twice the length and six times the radius ?

a)

b)

c)

9

d)

36


Question ID - 56416 :-

A force F is required to break a wire of length  and radius r. What force is required to break a wire, of the same material, having twice the length and six times the radius ?

a)

b)

c)

9

d)

36

1 Answer
5876 Votes
3537

Answer Key : (d) -

(d)

Breaking force does not depend upon length.

Breaking force = breaking stress  area of cross-section for a given material, breaking stress in constant.

Or  s



Next Question :

The Young’s modulus of the material of a wire is  If the elongation strain is 1%, then the energy stored in the wire per unit volume in  is

a)

b)

c)

d)


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