The main fire pump for hydrants typically has a capacity to deliver a high volume of water, which is essential for effective firefighting. A standard capacity for these pumps is around 4500 litres per minute (lpm), which allows for sufficient water pressure and flow to fight fires in various buildings or structures.
Draw the pattern of the magnetic field lines for the two parallel straight conductors carrying current of same magnitude 'I' in opposite directions as shown. Show the direction of magnetic field at a point O which is equidistant from the two conductors. (Consider that the conductors are inserted normal to the plane of a rectangular cardboard.)