A 0.4m long steel rod has a diameter of 0.05m and a modulus of elasticity of 20x10^4 MPa. The rod supports a 10000N compressive load. What is most nearly the decrease in the steel rod's length? a. 1.3 x 10^-6 m b. 2.5 x 10^-6 m c. 5.1 x 10^-6 m d 1.0 x 10^-5 m

A 0.4m long steel rod has a diameter of 0.05m and a modulus of elasticity of 20x10^4 MPa. The rod supports a 10000N compressive load. What is most nearly the decrease in the steel rod's length? a. 1.3 x 10^-6 m b. 2.5 x 10^-6 m c. 5.1 x 10^-6 m d 1.0 x 10^-5 m

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Concept explainers

Strain energy

The term strain indicates the variation in an object's length, area, and volume when the object is subjected to an external force. The external force may be of normal, shear, moment, torque, etc. The strain in an object depends on the types of external force and cross-section of the object. Mathematically, the evaluation of strain can be obtained with the help of elastic constants.

Question

A 0.4m long steel rod has a diameter of 0.05m and a modulus of elasticity of 20x10^4 MPa. The rod
supports a 10000N compressive load. What is most nearly the decrease in the steel rod's length?
a. 1.3 x 10^-6 m
b. 2.5 x 10^-6 m
c. 5.1 x 10^-6 m
d 1.0 x 10^-5 m

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