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 The propagation of sound waves in a gas involves Isobaric compression and rarefaction Isothermal compression and rarefaction Isochoric compression and rarefaction Adiabatic compression and rarefaction Isobaric compression and rarefaction Isothermal compression and rarefaction Isochoric compression and rarefaction Adiabatic compression and rarefaction ANSWER DOWNLOAD EXAMIANS APP
Physics Air moves from the region where the air ________ Pressure is high to the region where the pressure is low Humidity is low to the region where the humidity is high Pressure is low to the region where the pressure is high Humidity is high to the region where the humidity is low Pressure is high to the region where the pressure is low Humidity is low to the region where the humidity is high Pressure is low to the region where the pressure is high Humidity is high to the region where the humidity is low ANSWER DOWNLOAD EXAMIANS APP
Physics Which phase change is an example of an exothermic process? All listed here Liquid to Solid Gas to Liquid Gas to Solid All listed here Liquid to Solid Gas to Liquid Gas to Solid ANSWER DOWNLOAD EXAMIANS APP
Physics Purity of a metal can be determined with the help of Conservation of mass principle Pascal's law Boyle's law Archimedes principle Conservation of mass principle Pascal's law Boyle's law Archimedes principle ANSWER DOWNLOAD EXAMIANS APP
Physics If cream is removed from milk, its density Remains the same Increases Decreases May increase or decrease Remains the same Increases Decreases May increase or decrease ANSWER DOWNLOAD EXAMIANS APP
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