Physics In a bipolar junction transistor The collector has the least concentration of impurity The emitter has the least concentration of impurity The base has the least concentration of impurity All the three regions (the emitter, the base and the collector) have equal concentrations of impurity The collector has the least concentration of impurity The emitter has the least concentration of impurity The base has the least concentration of impurity All the three regions (the emitter, the base and the collector) have equal concentrations of impurity ANSWER DOWNLOAD EXAMIANS APP
Physics Who is known as the 'father of quantum theory'? Ernest Rutherford Werner Heisenberg Albert Einstein Max Planck Ernest Rutherford Werner Heisenberg Albert Einstein Max Planck ANSWER DOWNLOAD EXAMIANS APP
Physics A star appears twinkling in the sky because of Scattering of light by atmosphere Reflection of light by atmosphere Diffraction of light by atmosphere Refraction of light by atmosphere Scattering of light by atmosphere Reflection of light by atmosphere Diffraction of light by atmosphere Refraction of light by atmosphere ANSWER DOWNLOAD EXAMIANS APP
Physics For which one of the following, ''Diodes' are generally used for? Amplification Filtration Rectification Modulation Amplification Filtration Rectification Modulation ANSWER DOWNLOAD EXAMIANS APP
Physics What is the force of attraction between any two bodies by virtue of their masses is called? Nuclear Force Electromagnetic Force Gravitational Force Centripetal Force Nuclear Force Electromagnetic Force Gravitational Force Centripetal Force ANSWER DOWNLOAD EXAMIANS APP
Physics The wave like properties of electrons are useful in All of these Lasers Magnifying objects Weather reports All of these Lasers Magnifying objects Weather reports ANSWER DOWNLOAD EXAMIANS APP
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