One turn of a copper bar is produced by cutting a copper washer along a radius and spreading the ends. The washer is cut from soft-drawn copper having a resistivity at 20 degrees Celsius of 1.732x10^ -6 ohm-meter. The washer is 0.125 inch thick and has inside and outside diameter of 1 inch and 9 inches respectively. Calculate the exact resistance between the two ends of the turn to direct current taking into account the non-uniform current distribution. Assume the contact along the ends of the turn to be perfect over the entire cross-section.
use resistance resistivity*lenth/ area of crosssection cheers yashkaran singh
