Physics Large transformers, when used for some time, become very hot and are cooled by circulating oil. The heating of the transformer is due to: The heating effect of current alone Both the heating effect of current and hysteresis loss Intense sunlight at noon Hysteresis loss alone The heating effect of current alone Both the heating effect of current and hysteresis loss Intense sunlight at noon Hysteresis loss alone ANSWER DOWNLOAD EXAMIANS APP
Physics Which is the point from where an azimuth originates? West East North South West East North South ANSWER DOWNLOAD EXAMIANS APP
Physics The weakest of all fundamental forces is Magnetic force Nuclear force Electrostatic force Gravitational force Magnetic force Nuclear force Electrostatic force Gravitational force ANSWER DOWNLOAD EXAMIANS APP
Physics Which one of the following animals can hear ultrasonic sound ? Squirrel Cat Bat Rat Squirrel Cat Bat Rat ANSWER DOWNLOAD EXAMIANS APP
Physics A tank filled partially with a liquid is subjected to a uniform horizontal acceleration. Which of the following is true for the surface of liquid in the tank? The surface of the liquid remains horizontal The liquid surface falls down only at the center of the tank The liquid surface falls down on the direction of motion and rises up on the back side of the tank None The surface of the liquid remains horizontal The liquid surface falls down only at the center of the tank The liquid surface falls down on the direction of motion and rises up on the back side of the tank None ANSWER DOWNLOAD EXAMIANS APP
Physics The sky appears blue due to Mie scattering Rayleigh scattering Back scattering None of these Mie scattering Rayleigh scattering Back scattering None of these ANSWER DOWNLOAD EXAMIANS APP
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