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)
• 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 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
The correct answer is: Add batteries to increase the voltage, and decrease the space between the coils of wire.
1 answer