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 For Gamma radiation, what stops its penetrating abilities? Concrete Steal All of these Lead Concrete Steal All of these Lead ANSWER DOWNLOAD EXAMIANS APP
Physics According to special theory of relativity the mass of a particle Is independent of its velocity. Decreases with increase in velocity. Increases with increase in velocity with respect to an observer. Decreases with decrease in velocity. Is independent of its velocity. Decreases with increase in velocity. Increases with increase in velocity with respect to an observer. Decreases with decrease in velocity. ANSWER DOWNLOAD EXAMIANS APP
Physics Where do the electrical charges reside in a charged conductor? Outer surface of the body Throughout the body At the core Depended upon the nature of the body Outer surface of the body Throughout the body At the core Depended upon the nature of the body ANSWER DOWNLOAD EXAMIANS APP
Physics The centre of gravity of a sprinter during the race lies Behind his feet To the left side of the body At the centre of the body Ahead of his feet Behind his feet To the left side of the body At the centre of the body Ahead of his feet ANSWER DOWNLOAD EXAMIANS APP
Physics Which is an example of Phototropism? A venus flytrap capturing a fly Roots of a plant following water Plant bending toward the light Roots growing into the soil A venus flytrap capturing a fly Roots of a plant following water Plant bending toward the light Roots growing into the soil ANSWER DOWNLOAD EXAMIANS APP
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