Jaeda designs two electromagnets of different strengths. the first electromagnet has an insulated copper wire wrapped around an iron nail many times before it is connected to a battery. the second electromagnet has its insulated copper wire wrapped around a similar nail a fewer number of times before it is connected to two smaller batteries jaeda tries to determine which electromagnet is stronger by bringing each near a bowl containing eight metal paper clips. she observes that both electromagnets attract all eight of the paper clips how can jaeda demonstrate that each electromagnet has a different strength?