True or False
6. Electromagnet is a temporary magnet because without electricity, it loses its
magnetism
7. An electromagnet can attract magnetic materials even without a battery or a power
source.
8. Some electric appliances or objects are powered by electromagnet,
9. The strength of the magnetic field increases as more loops are added.
10. If there is no available nail, we can use a barbecue stick as metal core of an
electromagnet.​