1 Answered Questions for the topic Electrical Resistance
03/30/15
The electrical resistance R of a wire varies directly as its length l and inversely as the square of its diameter d.
(a) Express R in terms of l, d, and a constant of variation k.
I got the equation R=k(l/d^2) which was correct.
(b) A wire 90 feet long of diameter 0.015 inch has a resistance of 25 ohms....
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