Shanor Roshe PHY 136 - COLLEGE PHYSICS H Dr. CHINN QUIZ # 9 PLEASE SHOW ALL LOGICAL STEPS TO SOLUTION FOR PROPER CREDIT

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Shanor Roshe Phy 136 College Physics H Dr Chinn Quiz 9 Please Show All Logical Steps To Solution For Proper Credit 1 (55.91 KiB) Viewed 9 times

Shanor Roshe PHY 136 - COLLEGE PHYSICS H Dr. CHINN QUIZ # 9 PLEASE SHOW ALL LOGICAL STEPS TO SOLUTION FOR PROPER CREDIT II 1. a) What is the resistance of 100 m of copper wire with a cross-sectional area of 5x10 cm at 0° C7 b) If this wire is heated to a temperature of of 250°C, how much will the resistance increase by c) If a current of SA flows through the wire given in (a), what is the drift velocity of the free electrons in the wire? The free electron density is 8,3x10" electrons per cm'. electron volume elements copper wire 07 0-> 30 O > 0-0 100 m * R = PL T (1.0) (100) © I - © I = levorit A 5x lotere 4 -19 5A=(85+ 10 **) (1.6+10) (5x10 ") (172x1078 34 4 x 106 $ 34 4 x 10