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18 March, 18:30

Malik built a simple electromagnet with copper wire, an iron bolt, and a 1.5-volt battery. The electromagnet was

able to lift a paper clip from 3 centimeters away. Select all the ways Malik can improve the strength of his

electromagnet

He can use a longer piece of wire that wraps more times around the bolt.

He can reverse the orientation of the battery.

He can replace the 1.5-volt battery with a battery of higher voltage.

He can replace the iron rod with a wooden rod

He can add a switch between the battery and the iron bolt.

(select all that apply)

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Answers (1)
  1. 18 March, 19:12
    0
    I believe it would be these:

    He can replace the 1.5-volt battery with a battery of higher voltage.

    He can use a longer piece of wire that wraps more times around the bolt.

    I'm not sure the others would work
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