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 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 The heating effect of current alone ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following waves cannot be polarised? Infrared Radio Ultra violet Ultrasonic Infrared Radio Ultra violet Ultrasonic ANSWER DOWNLOAD EXAMIANS APP
Physics When a body is immersed in a liquid, the force acting on it is Both (A) and (B) Weight Mass Upthrust Both (A) and (B) Weight Mass Upthrust ANSWER DOWNLOAD EXAMIANS APP
Physics The composition of electrician solder is Iron-37%, tin-63% Lead-37%, tin-63% Steel-37%, copper-63% Lead-37%, Steel-63% Iron-37%, tin-63% Lead-37%, tin-63% Steel-37%, copper-63% Lead-37%, Steel-63% ANSWER DOWNLOAD EXAMIANS APP
Physics When a stone is thrown in the calm water of a pond the waves produced on the surface of water in the pond are Transverse Both longitudinal and transverse Waves are not produced Longitudinal Transverse Both longitudinal and transverse Waves are not produced Longitudinal ANSWER DOWNLOAD EXAMIANS APP
Physics Which physicists is the writer of the book 'A Brief History of Time'? Albert Einstein Stephen Hawking Isaac Newton Hans Bethe Albert Einstein Stephen Hawking Isaac Newton Hans Bethe ANSWER DOWNLOAD EXAMIANS APP
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