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<a accesskey="3" href="page.php?w=magnetorotational_instability&amp;p=2">3.Next</a>
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<p>The <b>magnetorotational instability (MRI)</b> is a <a href="page.php?w=fluid">fluid</a> <a href="page.php?w=instability">instability</a> that causes an <a href="page.php?w=accretion_disk">accretion disk</a> orbiting a massive central object to become <a href="page.php?w=turbulent">turbulent</a>.  It arises when the <a href="page.php?w=angular_velocity">angular velocity</a> of a conducting fluid in a magnetic field decreases as the distance from the rotation center increases. It is also known as the <b>Velikhov-Chandrasekhar instability</b> or</p><p>
<a accesskey="3" href="page.php?w=magnetorotational_instability&amp;p=2">3.Next</a>
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