What is a venturi meter ?

Give the formula for measurement of velocity of fluid in a broader part of venturi -meter .

The flow of blood in large artery of anesthetised dog is diverted through a venturi meter . The wider part of the meter has a cross sectional area equal to that of the artery. A=8mm^(2) . The narrower part has an area a=4mm^(2) . The narrower part has an area a=4mm^(2) . The pressure drop in the artery is 24 Pa . What is the speed of the blood in the artery ? (1.60xx10^(3)kgm^(-3))

The relative permeability in a core of a solenoid is 400. The windings of a solenoid are insulated from the core and carry a current of 2A. If the number of turns is 1000 per meter. Then magnetic Intensity inside the core of solenoid is ______ A//m .

Find the dimensions of a rectangle whose perimeter is 28 meters and whose area is 40 square meters.

In a meter bridge set up, which of the following should be the properties of the one meter long wire?

Give the significance of the electric meter in a domestic circuit.