Physics When a piece of pure silicon is doped with aluminium, then The doped silicon piece will become p-type The conductivity of the doped silicon piece will remain the same The resistivity of the doped silicon piece will increase The doped silicon piece will become n-type The doped silicon piece will become p-type The conductivity of the doped silicon piece will remain the same The resistivity of the doped silicon piece will increase The doped silicon piece will become n-type ANSWER DOWNLOAD EXAMIANS APP
Physics What is the minimum velocity required for a rocket to overcome earth's gravity and travel into space? 35 km/sec 21 km/sec 18 km/sec 11.2 km/sec 35 km/sec 21 km/sec 18 km/sec 11.2 km/sec ANSWER DOWNLOAD EXAMIANS APP
Physics The width of depletion layer of a P-N junction Increases with heavy doping Is independent of applied voltage Is increased under reverse bias Decreases with light doping Increases with heavy doping Is independent of applied voltage Is increased under reverse bias Decreases with light doping ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following has the highest frequency? Microwaves Cosmic rays Radio waves X-rays Microwaves Cosmic rays Radio waves X-rays ANSWER DOWNLOAD EXAMIANS APP
Physics Which physical quantity is measured in 'siemens'? Electric potential Magnetic flux Electrical conductance Refractive index Electric potential Magnetic flux Electrical conductance Refractive index ANSWER DOWNLOAD EXAMIANS APP
Physics Which sources produce alternating current (AC)? Hydro-electric generators All of these Solar power plants Batteries Hydro-electric generators All of these Solar power plants Batteries ANSWER DOWNLOAD EXAMIANS APP
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