A student made an electromagnet using an iron bolt, copper wire coiled three times around the bolt, and a battery. How can he increase the strength of his magnet?(1 point)
Responses
Add batteries to decrease the voltage, and increase the space between the coils of wire.
Add batteries to decrease the voltage, and increase the space between the coils of wire.
Add batteries to decrease the voltage, and decrease the space between the coils of wire.
Add batteries to decrease the voltage, and decrease the space between the coils of wire.
Add batteries to increase the voltage, and increase the space between the coils of wire.
Add batteries to increase the voltage, and increase the space between the coils of wire.
Add batteries to increase the voltage, and decrease the space between the coils of wire.
Add batteries to increase the voltage, and decrease the space between the coils of wire.