InterviewSolution
Saved Bookmarks
| 1. |
Answer the following :An electric iron of resistance 20heat developed in 30 seconds.takes a current of 5A. CalculateExplain the process of digestion of food in small intestine of man. |
|
Answer» Given that Resistance(R) = 20 Ω, Electric current (I)= 5 A and time(t)= 30 s Now we know that H= I2Rt = 5×5×20×30 = 15000J=1.5×104J ∴The heat developed in 30s is1.5×104J Digestionbegins in the mouth with the secretion of saliva and itsdigestiveenzymes. The partiallydigested foodenters the duodenum as a thick semi-liquid chyme. In thesmall intestine, the larger part ofdigestiontakes place and this is helped by the secretions of bile, pancreatic juice andintestinaljuice. |
|