Two wires, one of steel and another of aluminium, each of 2m length and diameter of 2mm are joined end to end to form a composite wire of length 4m. What tension in the wire will produce a total extension of 0.9mm

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Two wires one of Steel and other of aluminium each of 2 m long and diameter 20 mm are joined end to end and a composite wire of 4 m is formed. What is the tension in the wire producef on a total extension of 0.9 millimetres?

Q. Two wires of different materials, each

2

m long and of diameter

2

mm, are joined in series to form a composite wire. What force will produce a total extension of

0.9

mm.

(Y_{1} = 2 \times 10^{11} P a

Y_{2} = 6 \times 10^{11} P a)

Q. Two wires of different materials, each

2 m

long and of diameter

2 m m

, are joined in series to form a composite wire. What force will produce a total extension of

0.9 m m

? (

Y_{1} = 2 \times 10^{11} P a

and

Y_{2} = 6 \times 10^{11} P a

)

Q. Two wires of different materials, each

2 m

long and of diameter

2 m m

, are joined in series to form a composite wire. What force will produce a total length of

0.9 m m

. Given Young's modulus of both wires is

(Y_{1} = 2 \times 10^{11} p a)

and

(Y_{2} = 6 \times 10^{11} P a)

A copper wire of length 1.0 m and a steel wire of length 0.5 m having equal cross-sectional areas are joined end to end. The composite wire is stretched by a certain load which stretches the copper wire by 1 mm. If the Young's moduli of copper and steel are $1.0 \times 10^{11} N m^{- 2}$ and $2.0 \times 10^{11} N m^{- 2}$ , the total extension of the composite wire is

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