Data: 25 turn electromagnet batter voltage: 1.5 V , 3.0 V , 4.5 V, 6.0V paper clips picked up first try: 5, 12, 14, 20 paper clips picked up second try: 7, 12, 17, 26 average: 6, 12, 15.5, 23
50 turn electromagnet battery voltage: 1.5 V, 3.0 V, 4.5 V, 6.0 V paperclips picked up first try: 10, 28, 30, 44 paperclips picked up second try: 16, 24, 32, 50 average: 13, 26, 31, 47