For a range of voltages, {HEAD ~ the ratio} of {TAIL ~ the current} to voltage is a constant, which for a typical thermistor may be about one ohm 
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For a range of voltages , { HEAD ~ the ratio } of { TAIL ~ the current } to voltage is a constant , which for a typical thermistor may be about one ohm
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH