Material Science Quiz

Joule discovered magnetostriction in 1842.

The symbol used to represent the magnetically induced strain is l.

The value measured at magnetic saturation is called the saturation magnetostriction ls.

<p>Other magnetostrictive effects include magnetically induced torsion or bending of a rod, which are considered special cases of the longitudinal effect.</p> Signup and view all the answers

<p>The saturation magnetostriction ls is typically of the order of 10^-2 to 10^-5.</p> Signup and view all the answers

<p>Magnetostriction is the change in dimensions of a substance when exposed to a magnetic field. It was discovered in 1842 by Joule.</p> Signup and view all the answers

<p>The magnetically induced strain is given the special symbol l.</p> Signup and view all the answers

<p>The value of the longitudinal magnetostriction measured at magnetic saturation is called the saturation magnetostriction ls.</p> Signup and view all the answers

<p>The typical order of magnitude for the saturation magnetostriction ls in strongly magnetic substances is typically of the order of 10^-25.</p> Signup and view all the answers

<p>A strain of 10^-25 would be produced by an applied stress of only 300 lb/in2 or 2 MPa if Young’s modulus is 30*10^6 lb/in2.</p> Signup and view all the answers