Offer point-of-care and PT/INR self-testing for greater confidence in patient adherence and outcomes Studies have shown that both in-office monitoring and patient self-testing with CoaguChekÂ® systems can help you personalize warfarin therapy, so patients spend more time in therapeutic range1,2.
Electrical resistivity is a property of materials and is different from electrical resistance which is a property of a component. Resistivity is also known as Specific Electrical Resistance or Volume Resistivity. Resistivity can also be defined as the inverse of the conductivity of a material - Ï = 1 / Ï.It is a measure of how a material opposes the flow of electric current. The SI unit of resistivity is ohm meter (Ï.m).
At room temperature, copper has a resistivity of 16.78 nÎ©m. From the above equation, it can be seen that as the thickness and, thus, the cross-sectional area A of the wire increases (for the same length l) the resistance will decrease because of the reciprocal effect upon the value of R as A increases in size.However, this is not the full picture. '..hat is the relationship between wire thickness affecting resistance and 1/r1+1/r2=1/rTotal? i am confused.?