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: Hysteresis loss alone The heating effect of current alone Intense sunlight at noon Both the heating effect of current and hysteresis loss Hysteresis loss alone The heating effect of current alone Intense sunlight at noon Both the heating effect of current and hysteresis loss ANSWER DOWNLOAD EXAMIANS APP
Physics The coil wire in the electric room heater or electric cooking heater is called ________ Cells Circuit Element Filament Cells Circuit Element Filament ANSWER DOWNLOAD EXAMIANS APP
Physics Light scattering takes place in Colloidal solutions Electrolyte solutions Basic solutions Acidic solutions Colloidal solutions Electrolyte solutions Basic solutions Acidic solutions ANSWER DOWNLOAD EXAMIANS APP
Physics Which one of the following determines the sharpness of image in a camera ? The aperture The exposure time The focal length of the lens Size of the camera The aperture The exposure time The focal length of the lens Size of the camera ANSWER DOWNLOAD EXAMIANS APP
Physics At what temperature do the Fahrenheit and Celsius scales give the same reading? -40 degreees 0 degreees 32 degreees 212 degrees -40 degreees 0 degreees 32 degreees 212 degrees ANSWER DOWNLOAD EXAMIANS APP
Physics A falling drop of rain water acquires the spherical shape due to Surface Tension Gravitational force Viscosity Atmospheric pressure Surface Tension Gravitational force Viscosity Atmospheric pressure ANSWER DOWNLOAD EXAMIANS APP
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