6) You have the following materials available: A battery, several pieces of flexible wire, a small cylinder of iron, a cylinder of gold, a red coloured resistor with 0.1 of resistance, a blue coloured resistor with 0.8 of resistance, and a switch.

a) Describe how a magnet could be made with your materials.

b) What are two ways you could increase the strength of your magnet? What are two ways you could decrease the strength of your magnet?