CONSTANT FLOW - ENGLISH - 27MB

It is known that in a group of people, each of which speaks at least one of the languages English, Hindi and Bengali, 31 speak English, 36 speak Hindi and 27 speak Bengali. 10 speak both English and Hindi, 9 both English and Bengali and 11 both Hindi and Bengali. Using a Venn diagram or otherwise, prove that the group contains at least 64 people and not more than 73 people.

A current I is flowing thorugh the loop. The direction of the current and the shpae of the loop are as the shown in the figure. The magnetic fild at the centre of the loop is (mu_(0) I)/(R) times (MA = R, MB = 2R, /_DMA = 90^(@))

A current I is flowing thorugh the loop. The direction of the current and the shape of the loop are as the shown in the figure. The magnetic fild at the centre of the loop is (mu_(0) I)/(R) times (MA = R, MB = 2R, /_DMA = 90^(@))

The heat of combustion of solid benzoic acid at constant volume is -321.30 kJ at 27^(@)C . The heat of combustion at constant pressure is

The heat of combustion of solid benzoic acid at constant volume is -321.30 kJ at 27^(@)C . The heat of combustion at constant pressure is