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 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 ANSWER DOWNLOAD EXAMIANS APP
Physics The hydraulic brakes used in automobiles is a direct application of : Archimedes' principle Toricellian law Bernoulli's theorem Pascal's law Archimedes' principle Toricellian law Bernoulli's theorem Pascal's law ANSWER DOWNLOAD EXAMIANS APP
Physics Water is used in car radiator because of its High specific heat capacity Low boiling point Easy availability Low density High specific heat capacity Low boiling point Easy availability Low density ANSWER DOWNLOAD EXAMIANS APP
Physics Which compressor is usually used in AC? Reciprocating Centrifugal Axial Rotary Reciprocating Centrifugal Axial Rotary ANSWER DOWNLOAD EXAMIANS APP
Physics The damage of the human body due to radiation (X-rays or grays etc,) is measured in : Rads Roentgen Rems Curie Rads Roentgen Rems Curie ANSWER DOWNLOAD EXAMIANS APP
Physics Which among the following is false about displacement? It is always positive It can be positive, negative or zero Its SI unit is meter Displacement is never greater than Distance It is always positive It can be positive, negative or zero Its SI unit is meter Displacement is never greater than Distance ANSWER DOWNLOAD EXAMIANS APP
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