Rain-water harvesting is the process of collecting and storing rainwater for later use.
It is commonly done by channeling rainwater from rooftops into storage tanks or underground reservoirs.
वर्षा जल संकलन तकनीक क्या है ?
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.)