Physics, 21.04.2021 09:50 j015

Wei Ming wanted to make a temporary magnet. He then arranged the set up as shown in the diagram below.
Battery
Switch
Wire
Iron rod
After 30 seconds, he decided to test his temporary magnet by using it to
attract some iron nails. To his disappointment, only 2 iron nails were attracted.
What should Wei Ming do to ensure that his temporary magnet would attract
more iron nails?

Wei Ming wanted to make a temporary magnet. He then arranged the set up as

shown in the diagram b

Answers: 3

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