Use the diagram below to answer the following question:

Question

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Which procedure step could the student follow to make the magnetic force exerted by the electromagnet greater?

(1 point)
Responses

increase the length of wire at location 1
increase the length of wire at location 1

open the switch at location 2
open the switch at location 2

add more batteries in series at location 3
add more batteries in series at location 3

reduce the number of wire turns at location 4
reduce the number of wire turns at location 4

Answer 1

The procedure step the student could follow to make the magnetic force exerted by the electromagnet greater is to add more batteries in series at location 3.