i dont understand at all
Mrs. Hogan has given you a box of materials and challenged you to use the materials to determine what effect increasing the current in a wire has on the magnetic field generated around the wire. Describe how you can use some, or all, of the materials to determine what effect increasing the current in a wire has on the magnetic field generated around the wire. In your description, be sure to include the following:

Describe how you would use each of the materials you choose to use

Identify your independent and dependent variables, and at least two controlled variables

Create a data table that can be used to record your data

Materials in the Box

4 batteries

wire

directional compass

10 iron nails

a strong permanent magnet

a weak permanent magnet

a voltmeter

a box of paper clips