Physics Suitable impurities are added to a semiconductor depending on its use. This is done in order to increase its electrical resistivity increase its electrical conductivity enable it to withstand higher voltages increase its life increase its electrical resistivity increase its electrical conductivity enable it to withstand higher voltages increase its life ANSWER DOWNLOAD EXAMIANS APP
Physics Outside of cooking utensils are generally left black from below because Black surface is a good conductor of heat. Black surface is a poor conductor of heat. It is difficult to clean daily. Black surface is a good absorber of heat. Black surface is a good conductor of heat. Black surface is a poor conductor of heat. It is difficult to clean daily. Black surface is a good absorber of heat. ANSWER DOWNLOAD EXAMIANS APP
Physics Holography is a technique of Recording a permanent, sharp two diimensional black and white or multicolour photograph Recording a permanent three dimensional black and white photograph Recording a permanent three dimensional multicolour photograph Recording a permanent three dimensional photograph of a given single colour or a multicolour Recording a permanent, sharp two diimensional black and white or multicolour photograph Recording a permanent three dimensional black and white photograph Recording a permanent three dimensional multicolour photograph Recording a permanent three dimensional photograph of a given single colour or a multicolour ANSWER DOWNLOAD EXAMIANS APP
Physics The characteristic invalid for heat radiation is that it travels : In a straight line Heating the medium through which it passes In all directions With the speed of light In a straight line Heating the medium through which it passes In all directions With the speed of light ANSWER DOWNLOAD EXAMIANS APP
Physics At what temperature (in degree Celsius), the numerical values on Celsius and Fahrenheit scales become equal? –40 40 –273 273 –40 40 –273 273 ANSWER DOWNLOAD EXAMIANS APP
Physics Copper wires are generally used for electrical power transmission instead of iron wire because : Copper is lighter than iron Copper can take higher power than iron Copper is a better conductor of electricity than iron Copper is cheaper than iron Copper is lighter than iron Copper can take higher power than iron Copper is a better conductor of electricity than iron Copper is cheaper than iron ANSWER DOWNLOAD EXAMIANS APP
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