Question

A copper wire 1.2km long and has cross sectional area of 5mm squared find the resultant of copper is 0.02×10^-6 and temperature co efficient of resistance is 0.004%c

Answer 1

Explanation:

An electronics instructor wants to demonstrate to his students the effect of electrical resistance changing with temperature To do this, he selects a carbon resistor about imeters in length and 5 millimeters in diameter,

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