That is, {TAIL ~ the body member} 32 extending through the magnetic flux lines modifies {HEAD ~ their path} to conform to, and flow through, rod 30 rather than the surrounding air 
That is , { TAIL ~ the body member } 32 extending through the magnetic flux lines modifies { HEAD ~ their path } to conform to , and flow through , rod 30 rather than the surrounding air
OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH