Braided wire of length L is used to transmit a maximum DC power P from a solar p

Question

Braided wire of length L is used to transmit a maximum DC power P from a solar panel array to an inverter and battery bank. Each braid within the wire has diameter d. The solar array produces a maximum voltage V.

Building code requires that a large enough wire be used such that less than 2% of the power generated by the solar array durring peak operation is lost as heat generated within the wire.

Part A - How many braids are required to meet building code for the solar array?

The resistivity of the wire material is .

The resistivity of the wire material is .

  N=0.02/ (PL/V^2d^2)     N=/0.02 (V^2d^2/PL)     N=/0.04 (V^2d^2/PL)     N=/0.08 (V^2d^2/PL)     N=0.08/ (PL/V^2d^2)     N=0.04/ (PL/V^2d^2)  

Explanation / Answer

resistance =resistivityx length/area

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