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27 Nov 2019
A copper wire has radius r = 0.0245cm, is 3.05 m long, hasresistivity
Ï = 1.72 · 10â8 Ω m, andcarries a current of 0.360 A.The wire has density of charge carriers of 8.50 · 10^28 electrons/m^3. (When enteringunits, use ohm for Ω.)
(a) What is the resistance, R, of the wire?
(b) What is the electric potential difference,ÎV, across the wire?
(c) What is the electric field, E, in the wire? (Enterthe magnitude of the electric field.)
A copper wire has radius r = 0.0245cm, is 3.05 m long, hasresistivity
Ï = 1.72 · 10â8 Ω m, andcarries a current of 0.360 A.The wire has density of charge carriers of 8.50 · 10^28 electrons/m^3. (When enteringunits, use ohm for Ω.)
(a) What is the resistance, R, of the wire?
(b) What is the electric potential difference,ÎV, across the wire?
(c) What is the electric field, E, in the wire? (Enterthe magnitude of the electric field.)
Sixta KovacekLv2
23 Oct 2019
