A current of 10 A passes through a 1-mmdiameter wire 1000 m long. Calculate the power loss if the wire is made from
(a) Aluminum and
(b) Silicon

Transcribed Image Text:

Material Superconductors Hg, Nb3Sn YBa₂Cu3O7-x MgB₂ Metals Alkali metals Na K Alkali earth metals Mg Ca Group 3B metals Al Ga Transition metals Fe Ni Group 1B metals Cu Ag Au Conductivity (ohm ¹. cm ¹) Infinite (under certain conditions such as low temperatures) 2.13 X 105 1.64 x 105 2.25 X 105 3.16 x 105 3.77 X 105 0.66 x 105 1.00 x 105 1.46 x 105 5.98 x 105 6.80 x 105 4.26 X 105 Material Semiconductors Group 4B elements Si Ge Compound semiconductors GaAs AIAS Sic Ionic Conductors Polyethylene Polytetrafluoroethylene Polystyrene Epoxy Ceramics Alumina (Al₂O3) Silicate glasses Conductivity (ohm ¹. cm ¹) Indium tin oxide (ITO) Yttria-stabilized zirconia (YSZ) Insulators, Linear, and Nonlinear Dielectrics Polymers Boron nitride (BN) Barium titanate (BaTiO3) C (diamond) 4 x 10-6 0.02 2.5 × 10-9 0.1 10-10 -104 <1014 10-15 10-18 10-17 to 10-19 10-12 to 10-17 10-14 10-17 10-13 10-14 <10-18