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Q4. A copper cable has a total length of 2 metres and a diameter of 0.5 mm. Given that the resistivity of copper is ρCu
Posted: Sun Nov 13, 2022 10:25 am
by answerhappygod
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Q4. A copper cable has a total length of 2 metres and a diameter of 0.5 mm. Given that the resistivity of copper is ρCu=1.72×10−8Ωm, determine: a) The total resistance of the wire; (3) b) The potential difference between each end of the wire whf i a current of 1.5 A passes through it; c) The energy (in Joules) "lost" to this cable after 5 hours of use. (3) (7 marks)