A and B are two wire. The radius of A is twice that of B. If they are stretched by the same load, then the stress on B isA. equal to that of AB. two times that of AC. four times that of AD. half that of A

A and B are two wire. The radius of A is twice that of B. If they are

1.	A and B are two wire. The radius of A is twice that of B. If they are stretched by the same load, then the stress on B isA. equal to that of AB. two times that of AC. four times that of AD. half that of A
Answer» Correct Answer - c stress `= (F)/(S)` Let r be the radius of B For `A, (F)/(pi (2 r)^(2)) = (F)/(pi (4 r^(2)))` For B, stress `= (F)/(pi r^(2))` `:. (F)/(pi r^(2)) = 4 [(F)/(pi r^(2))]` stress on B = 4 (stress on A)

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A and B are two wire. The radius of A is twice that of B. If they are stretched by the same load, then the stress on B isA. equal to that of AB. two times that of AC. four times that of AD. half that of A

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