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A current of I=8.0 A is flowing in a typical extension cord of length L=3.00 m....

A current of I=8.0 A is flowing in a typical extension cord of length L=3.00 m. The cord is made of copper wire with diameter d=1.5 mm. The charge of the electron is e=1.6×10-19 C. The mass of the electron is m=9.1×10−31 kg. The resisitivity of copper is ρ=1.7×10−8 Ω⋅m. The concentration of free electrons in copper is n=8.5×1028 m−3.

Find the total number of collisions (Nc) that all free electrons in this extension cord undergo in one second.

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9.1x10-31 T- me Pnez 14x10 8x8.5 x 1028 ( 16x1019) ² T= 2.45 810143 7 = 4:08 1035 Nc - norv = 408x10 x 8.5x10° he 08 -3. x 8

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