". VdoTips: Science Multiple Choice Questions

Science Multiple Choice Questions

41. With increase in temperature, thermal conductivity of a metal _____________.
(A).Increases
(B).Decreases
(C).Either
(D).All, depending on metal.
42. Thermal conductivity in polymers increases with ________.
(A).Increase in crystallinity
(B).Decrease in crystallinity
(C).Either
(D).None
43. Example for soft magnet
(A).45 Permalloy
(B).CrO2
(C).Fe-Pd
(D).Alnico
44. Example for hard magnet
(A).45 Permalloy
(B).CrO2
(C).Fe-Pd
(D).Alnico
45. Example for magnetic material used in data storage devices
(A).45 Permalloy
(B).CrO2
(C).Cunife
(D).Alnico