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

1 answer

To increase the strength of the electromagnet, the student should "add batteries to increase the voltage, and decrease the space between the coils of wire."

Increasing the voltage will enhance the current flowing through the copper wire, which will in turn strengthen the magnetic field. Decreasing the space between the coils will allow the magnetic field to be more concentrated, further increasing the magnet's strength.