Boojho made an electromagnet by winding 50 turns of wire over an iron screw

cbse
cbse-class-7-science
electric-current-eff

#1

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 electromagnet will attract more pins? Give reason.
Answer:
Paheli’s electromagnet will attract more pins as it has more number of turns of wire on it and thus, a stronger electromagnet