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Questions
What is the efect of the following variables on the strength of an
electromagnet
ignmess of the wire coiled around the nail
2. numoer of coils of wire around the nail
3. number of dry cels used
4 sue of nai​

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Answer:

4.Nail Measurement Guide: 2d to 16d

A 2d nail is 1 inch long and a 3d nail is 1.25 inches long. 4d nails measure 1.5 inches and 5d nails measure 1.75. A 6d nail is 2 inches long and an 8d nail is 2.5 inches long. 12d nails are 3.25 inches long and 16d nails (16 penny) are 3.5 inches long.

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