Physics Positive feedback is used in Amplifiers Rectifiers None of these Oscillators Amplifiers Rectifiers None of these Oscillators ANSWER DOWNLOAD EXAMIANS APP
Physics The first law of thermodynamics is simply the case of The law of conservation of energy Charle's law Newton's law of cooling The law of heat exchange The law of conservation of energy Charle's law Newton's law of cooling The law of heat exchange ANSWER DOWNLOAD EXAMIANS APP
Physics In a Laser (say neon laser) all the atoms emit the light waves of Same frequency All of these Same phase Same amplitude Same frequency All of these Same phase Same amplitude ANSWER DOWNLOAD EXAMIANS APP
Physics The force which makes a vehicle to stop when break is applied is called Covalant force Frictional force Vanderwalls force Gravitational force Covalant force Frictional force Vanderwalls force Gravitational force ANSWER DOWNLOAD EXAMIANS APP
Physics Which layer of the earth's atmosphere reflect back the radio waves to the earth's surface ? Ionosphere Mesosphere Exosphere Stratosphere Ionosphere Mesosphere Exosphere Stratosphere ANSWER DOWNLOAD EXAMIANS APP
Physics The coil wire in the electric room heater or electric cooking heater is called ________ Filament Cells Circuit Element Filament Cells Circuit Element ANSWER DOWNLOAD EXAMIANS APP
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