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)

Question

Responses

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 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 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.

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.

Answer 1

The correct response to increase the strength of the electromagnet is:

Add batteries to increase the voltage, and decrease the space between the coils of wire.

By increasing the voltage, you provide more electrical energy to the wire, which increases the current and, consequently, the magnetic field strength. Additionally, decreasing the space between the coils of wire can enhance the magnetic field, as the coils are closer together, resulting in a more concentrated magnetic field.