Question

The single most important use of the element gold is for wires that join integrated circuits to the conducting pads that then connect microelectronic chips with external circuitry. A typical application uses gold wires 1.0 mil (0.001 inch) in diameter and 55 mil long. Although the current under normal conditions is much less, such a wire will fuse (that is, melt and interrupt the current) when the current exceeds some 660 mA. Find the current density in the wire when this maximum current is flowing. Express your answer with the appropriate units. Find the electric field in the wire when this maximum current is flowing. Express your answer with the appropriate units. Find the voltage between the ends of the wire when this maximum current is flowing. Express your answer with the appropriate units

Answer 1