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?

A.
increase the length of wire at location 1

B.
open the switch at location 2

C.
add more batteries in series at location 3

D.
reduce the number of wire turns at location 4

Answer 1

C.
add more batteries in series at location 3