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The materials: A pack of Paperclips, an iron nail, a coil (2m) of wire coated in plastic and the battery deposit.

Trial 2: 20 loops around the iron nail with the wire coated in plastic, while 1.5 volts go through the iron nail.

Trial 3: all the wire coated in plastic wrapped around the iron nail, while 1.5 volts go through the iron nail.

Results:
Trial 1: 20 loops=picked up 6 paperclips

Trial 2: 50 loops= picked up 23 paperclips

Trial 3: all the wire 70 loops= picked up 27 paperclips