chp36_1 - PHY2061 R D Field Mutual Self Inductance Mutual...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
PHY2061 R. D. Field Department of Physics chp36_1.doc University of Florida Mutual & Self Inductance Mutual Inductance ( M ): Consider two fixed coils with a varying current I 1 in coil 1 producing a magnetic field B 1 . The induced EMF in coil 2 due to B 1 is proportional to the magnetic flux through coil 2 , Φ 21 2 2 22 =⋅ = rr Bd A N coil φ , where N 2 is the number of loops in coil 2 and φ 2 is the flux through a single loop in coil 2 . However, we know that B 1 is proportional to I 1 which means that Φ 2 is proportional to I 1 . The mutual inductance M is defined to be the constant of proportionality between Φ 2 and I 1 and depends on the geometry of the situation, M I N I NM I == = = Φ Φ 2 1 1 2 1 . The induced EMF in coil 2 due to the varying current in coil 1 is given by,
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

Ask a homework question - tutors are online