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 The heating effect of current alone Both the heating effect of current and hysteresis loss Hysteresis loss alone Intense sunlight at noon The heating effect of current alone Both the heating effect of current and hysteresis loss ANSWER DOWNLOAD EXAMIANS APP
Physics 0°K is equivalent to 273°C 0°C 100°C – 273°C 273°C 0°C 100°C – 273°C ANSWER DOWNLOAD EXAMIANS APP
Physics Burns caused by steam are much severe than those caused by boiling water because Steam has latent heat Temperature of steam is higher Steam pierces through the pores of body quickly Steam is gas and engulfs the body quickly Steam has latent heat Temperature of steam is higher Steam pierces through the pores of body quickly Steam is gas and engulfs the body quickly ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following events occurred first ? Max Planck unveiled the Quantum Theory Albert Einstein propounded the General Theory of Relativity Madame Marie Curie became the first woman Nobel Prize winner Marconi first tranmitted a wireless signal Max Planck unveiled the Quantum Theory Albert Einstein propounded the General Theory of Relativity Madame Marie Curie became the first woman Nobel Prize winner Marconi first tranmitted a wireless signal ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following is not a transverse wave? Sound waves Light waves All listed here Radio waves Sound waves Light waves All listed here Radio waves ANSWER DOWNLOAD EXAMIANS APP
Physics Sound is heard over longer distances on rainy days because Sound travels faster in moist air Moist air does not absorb sound Moist air absorbs sound Sound travels slowly in moist air Sound travels faster in moist air Moist air does not absorb sound Moist air absorbs sound Sound travels slowly in moist air ANSWER DOWNLOAD EXAMIANS APP
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