Seamus made an electromagnet from an iron nail, a piece of copper wire with three coils spread out across the nail, and a AAA-sized battery. His magnet attracts only one paper clip, and he wants to boost the power of his magnet to attract at least four paper clips. What two things can Seamus do to accomplish his goal?
A.
Seamus can add batteries to decrease the voltage, and he can decrease the space between the wire coils.
B.
Seamus can add batteries to increase the voltage, and he can increase the space between the wire coils.
C.
Seamus can add batteries to increase the voltage, and he can decrease the space between the wire coils.
D.
Seamus can add batteries to decrease the voltage, and he can increase the space between the wire coils.
C. Seamus can add batteries to increase the voltage, and he can decrease the space between the wire coils.
By increasing the voltage, the electromagnet will be stronger, and by decreasing the space between the wire coils, the magnetic field will be more concentrated, resulting in a stronger attraction to paper clips.