From: LEROY PETERSEN (204510279@cput.ac.za)
Date: Wed Feb 23 2005 - 01:11:02 PST

If you have a copper disc with diameter of 0.25m that is rotating at
300rpm about a horizontal axis through its center perpendicular to its
plane.if the axis points magnetic north and south, what will the emf
between circumference of the disc be at the axis. we assume that the
horizontal component of the Earth's axis to be 18 micro Tesla.
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