A platinum, wire 80 cm long is ito have a resistance of 0.152 what should its...

Question

Question

A platinum, wire 80 cm long is ito have a resistance of 0.152 what should its diometer be ? the resistance of platinum is 1x10-^7

Answer 1

Answer #1

-2 l 0,8 m = 80 x 10 R = 0.1522 - 7 e = 1x10 diameter = ? R = e А el T82 2 > 2. - 7 10 X 0.8 = el TR IT (0.152) 2 8² = 1,6753

Answer 2

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