A group of students removed the plastic insulation around a wire. They wrapped the uninsulated wire around a steel rivet 50 times in order to make an electromagnet. They connected the wires to a battery to make a complete circuit. They tried to pick up some steel washers, but nothing happened. Below is the advice they received from other groups in the class. What advice should they take to get their electromagnet to pick something up? a . use insulated wire
b. wrap the wire around the nail more times
c. try picking up aluminum paper clips instead of the steel washers
d. add another d-cell to the circuit