Physics Positive feedback is used in Oscillators Rectifiers None of these Amplifiers Oscillators Rectifiers None of these Amplifiers ANSWER DOWNLOAD EXAMIANS APP
Physics The ringing of an electric bell in an enclosed evacuated glass bell jar is not heard outside because The bell jar is too small The ringing is not loud enough The glass of the bell jar absorbs the sound waves There is no air or any other gas in the bell jar The bell jar is too small The ringing is not loud enough The glass of the bell jar absorbs the sound waves There is no air or any other gas in the bell jar ANSWER DOWNLOAD EXAMIANS APP
Physics The unit of magnetic permeability is Henry Weber Henry/meter Weber/meter Henry Weber Henry/meter Weber/meter ANSWER DOWNLOAD EXAMIANS APP
Physics A needle or a pin floats on the surface of water because of Surface tension Surface energy Adhesive force Viscosity Surface tension Surface energy Adhesive force Viscosity ANSWER DOWNLOAD EXAMIANS APP
Physics Metals are good conductors of electricity because: They have high melting point. The atoms are lightly packed. All of these They contain free electrons. They have high melting point. The atoms are lightly packed. All of these They contain free electrons. ANSWER DOWNLOAD EXAMIANS APP
Physics Inside an aeroplane, flying at a high altitude, the pressure is the same as that outside. the pressure inside is less than the pressure outside. normal atmospheric pressure is maintained by the use of air pumps. normal humidity and partial vacuum are maintained. the pressure is the same as that outside. the pressure inside is less than the pressure outside. normal atmospheric pressure is maintained by the use of air pumps. normal humidity and partial vacuum are maintained. ANSWER DOWNLOAD EXAMIANS APP
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