5. Which question were the students investigating in Experiment 1?
A How does changing the voltage affect the number of pins picked up by the electromagnet?
B How does changing the number of loops affect the number of pins picked up by the
electromagnet?
C How does changing the number of loops affect the voltage of the electromagnet?
D How does changing the number pins affect the voltage of the electromagnet?
1 answer
B How does changing the number of loops affect the number of pins picked up by the electromagnet?