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write true if the statement is correct and false if it is incorrect 1. electromagnet is permanent magnet that can attract any metals or magnetic material 2. the number of coils of wire affect the magnetism of an electromagnet.More coils of wire means magnetism. 3. telephones, patterns and doorbells used an electromagnet 4. when electricity stops flowing through a coil of wire the nail continuous a attracting any metal or magnetic material 5. electromagnet is important in our daily life 6. nothing can be done to increase the strength of an electromagnet 7. an electromagnet may be produced by making electricity flow through a coil of wire wound around and iron nail 8. by using smaller core we can increase the strength of an electromagnet 9. an electromagnet can be made strong by adding more coils of wire 10. the coils should loop in one direction only
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