Boojho made an electromagnet by winding 50 turns of wire over an iron screw. Paheli also made an electromagnet by winding 100 turns over a similar iron screw. Which electro magnet will attract more pins? Give reason.
Since magnetic effect depends directly on the number of turns of wire on the electromagnet. So, the electromagnet of Paheli will attract more pins as it has number of turns of wire on it and thus it is a stronger magnet.