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: 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 Hysteresis loss alone The heating effect of current alone Intense sunlight at noon ANSWER DOWNLOAD EXAMIANS APP
Physics Materials that usually are good conductors of electricity? Nickel Lead Aluminium Wood Nickel Lead Aluminium Wood ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following device is used to measure humidity? Anemometer Hydrometer Psycho Meter Hygrometer Anemometer Hydrometer Psycho Meter Hygrometer ANSWER DOWNLOAD EXAMIANS APP
Physics One watt-hour is equivalent to 3.6 x 103 J 3.6 x 10-3 J 6.3 x 103 J 6.3 x 10-7 J 3.6 x 103 J 3.6 x 10-3 J 6.3 x 103 J 6.3 x 10-7 J ANSWER DOWNLOAD EXAMIANS APP
Physics Planets do not twinkle because They are very far away from the earth resulting in decrease in intensity of light They are nearer to earth and hence we receive a greater amount of light. They emit light of a constant intensity Their distance from the earth does not change with time They are very far away from the earth resulting in decrease in intensity of light They are nearer to earth and hence we receive a greater amount of light. They emit light of a constant intensity Their distance from the earth does not change with time ANSWER DOWNLOAD EXAMIANS APP
Physics Pycnometer is an instrument used to measure the High temperatures Intensity of solar radiation Density Intensity of earthquake High temperatures Intensity of solar radiation Density Intensity of earthquake ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS