Science, Physics - Electro magnets

Question 1

electromagnet

Answer 1

• a magnet that u can switch on and off

Question 2

magnetic field

Answer 2

• when there is a electric current flowing thru a wire there is a magnetic field
• the further away you are the weaker the magnetic field

Question 3

strength of electromagnet

Answer 3

• no of turns/loops = stronger electromagnet
• higher current = stronger electromagnet
• magnetic material = stronger electromagnet

Question 4

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Answer 4

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