Question: formula R = Pl A A - Area (M2 ) P- Resistivity of given Conductor ( 12, m) there fore : P= 1,794 *10 6

formula R = Pl A A - Area (M2 ) P- Resistivity of given Conductor ( 12, m) there fore : P= 1,794 *10 6 ohm-cm L- length of given conductor ( t) L = 30. 48 cm R - resistance of given Conductor D= 5.08cm given : A = lid 2 P = 1. 724 x 10 ohm - cm 1 4 L = 20ft A= 1 (5.08 cm) = 20.27cm2 4 If 1 foot = 30.48 cm A = 20. 27 cm 2 L= 20ft x 30.48 cm 609.6 cm formula: R= P'l A Ift AReq = 1/ d2 R = ( 7. 724 * 10 - 6 ) ( 30.48 ) - 2inches copper 4 20. 27 bar around If linch = 2.54 cm R = 5.185 x 10-5 ohm 2inch x 2.54cm = 5.08 cm 1 inch

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