Mean density (gm/cm3) of two metals are 2.71 and 3.26. Estimate the ..
Mean density (gm/cm 3 ) of two metals are 2.71 and 3.26. Estimate the sum of the mean densities of the metals. => 4 gm/cm 3 or 6 gm/cm ..
Origin of Resistivity
m : mass of the electrons l : length of the conductor n : density of free electrons in the conductor e : electronic charge A : area of cross-section t : relaxation time From this, the relaxation time r for a metal can be estimated, using the observed val..
m : mass of the electrons l : length of the conductor n : density of free electrons in the conductor e : electronic charge A : area of cross-section t : relaxation time From this, the relaxation time r for a metal can be estimated, using the observed val..Vectors - Introduction
>Similarly, by referring to the figure belo..
>Similarly, by referring to the figure belo..Significant Figures Introduction
. (v) The thickness of a metal wire is 0.02 cm. The unit of accuracy required is hundredth of a centimeter. Therefore, only digit 2 is significant. The 0 after decimal indicates the magnitude of measurement. Therefore, the 0 after decimal point is not significant. .02 ..
Current Electricity Summary
. where r , called resistivity is a property of the material and depends on temperature and pressure. Electrical resistivity of substances varies over a very wide range. Metals have low resistivity, in the range of 10 - 8 W m to 10 - 6 W m. Insulators like glass and rubber have 10 2h..
. where r , called resistivity is a property of the material and depends on temperature and pressure. Electrical resistivity of substances varies over a very wide range. Metals have low resistivity, in the range of 10 - 8 W m to 10 - 6 W m. Insulators like glass and rubber have 10 2h..Applications of Elasticity
. Hence, steel arch is used instead, as steel arch is stronger than the stone arched bridge. The thickness of the metallic rope needed to lift a given load is decided using the knowledge of elastic limit of the material of the rope and the factor of safety. Electric poles are made hollow ..
. Hence, steel arch is used instead, as steel arch is stronger than the stone arched bridge. The thickness of the metallic rope needed to lift a given load is decided using the knowledge of elastic limit of the material of the rope and the factor of safety. Electric poles are made hollow ..See what our Users say :
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