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Answer:
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
All the ways Malik can improve the strength of his electromagnet are -
- He can use a longer piece of wire that wraps more times around the bolt.
- He can replace the 1.5-volt battery with a battery of higher voltage
An electromagnet is a type of magnet in which the magnetic field is produced by an electric current that consists of wire wound into a coil.
To increase an electromagnet strength following things can be done:
- take a longer wire that wraps around the nail or rod few more times
- increase the current by taking high voltage battery
- take a thick or strong copper wire
Thus,
All the ways Malik can improve the strength of his electromagnet are -
- He can use a longer piece of wire that wraps more times around the bolt.
- He can replace the 1.5-volt battery with a battery of higher voltage
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