1. What is called a temporary magnet? A conductors B. electromagnet C. electricity D. iron wing materials can make the desit
2. Which of the following materials can make the electromagnet stronger? A. less coils B. more coils C. one coil D. no coils of wire
3. Which of the following devices makes use of electromagnet? A. electric bell B. electric buzzer C. telephone D. all of the above
4. Which of the following will an electromagnet attract? el olamiz A. pencil B. piece of cloth C. plastic can D. thumb tack
5. What materials is produced when a coil of wire is wind around an iron nail? A. battery B. circuit C. electromagnet D. magnet
6. What does electromagnet usually consist of? A. battery, paper and wood B. battery, Coil of wire and wood C. dry cell, coil of wire and core D. metal, Plastics and wood
7. What serves as the conductor of electricity? A. core or nail B. coil of wire C. dry cell HD. none of the three items a part of an e
8. What happens when a part of an electromagnet is disconnected? A. It loses its magnetism B. Electricity continues to flow through it. C. The electromagnet becomes a permanent magnet. D. There is an increase in the number of materials attracted.​