Question 34
A student made an electromagnet using the following set-up. Three variables that the student can change are listed below. For each variable, write a hypothesis or question that you could test using the set-up above.
a number of electrical cells
b number of wire coils
c size (voltage) of the electrical cell
Answer part (b): number of wire coils
a number of electrical cells
b number of wire coils
c size (voltage) of the electrical cell
Answer part (b): number of wire coils
