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 Hysteresis loss alone Intense sunlight at noon Both the heating effect of current and hysteresis loss The heating effect of current alone Hysteresis loss alone Intense sunlight at noon Both the heating effect of current and hysteresis loss ANSWER DOWNLOAD EXAMIANS APP
Physics Anemometer is an instrument meant for measuring ________ Air masses Velocity Temperature Wind speed Air masses Velocity Temperature Wind speed ANSWER DOWNLOAD EXAMIANS APP
Physics Which of these branches of Physics deal with heat and temperature and their relation to energy and work? Mechanics Atomic Physics Thermodynamics Geophysics Mechanics Atomic Physics Thermodynamics Geophysics ANSWER DOWNLOAD EXAMIANS APP
Physics After removing two electrons from helium atom it become? X rays Alpha particle Gama particle UV rays X rays Alpha particle Gama particle UV rays ANSWER DOWNLOAD EXAMIANS APP
Physics Who gave black hole theory? Isaac Newton None of these Stephen Hawking Albert Einstein Isaac Newton None of these Stephen Hawking Albert Einstein ANSWER DOWNLOAD EXAMIANS APP
Physics A stone floor feels cold to the bare feet but a carpet on the same floor feels warm. This is because The human body maintains a constant temperature The carpet is a better conductor of heat than the stone The stone conveys the heat away from the feet more rapidly than the carpet The floor and carpet are at different temperatures The human body maintains a constant temperature The carpet is a better conductor of heat than the stone The stone conveys the heat away from the feet more rapidly than the carpet The floor and carpet are at different temperatures ANSWER DOWNLOAD EXAMIANS APP
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