A student wishes to make the magnetic force exerted by the electromagnet shown below greater. Which procedure step could the student follow to accomplish this goal?

Question

A student wishes to make the magnetic force exerted by the electromagnet shown below greater. Which procedure step could the student follow to accomplish this goal?

*
1 point
1. wire, 2. switch, 3. batteries, 4. nail
increase the length of wire at location 1
open the switch at location 2
add more batteries in series at location 3
reduce the number of wire turns at location 4

Answer 1

To make the magnetic force exerted by the electromagnet greater, the student could follow the procedure step of adding more batteries in series at location 3.