Two different wires having lengths L, and L2, and respective temperature coefficient of linear expansion a, and a, are joined end-to-end. Then the effective temperature coefficient of linear expansion is: a,4 +a,L, (b) 2/a,a, (a) 4+L2 (c) di +a2 a,a2 (d) 4- a, +a2 (L2 + 4)? (c)

Two different wires having lengths L, and L2, and respective temperature coefficient of linear expansion a, and a, are joined end-to-end. Then the effective temperature coefficient of linear expansion is: a,4 +a,L, (b) 2/a,a, (a) 4+L2 (c) di +a2 a,a2 (d) 4- a, +a2 (L2 + 4)? (c)

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter1: Temperature And Heat

Section: Chapter Questions

Problem 49P: The height of the Washington Monument is measured to be 170.00 m on a day when the temperature is...

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Question

Please answer clearly and do it quickly.

Two different wires having lengths L, and L2, and
respective temperature coefficient of linear expansion a,
and a, are joined end-to-end. Then the effective
temperature coefficient of linear expansion is :
a,4 +azL
4+L2
(a)
(b) 2Va,a,
aj +a2
(d) 4-
a, +a2 (L2 + 4)?
(c)

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