Directions. Choose the LETTER of the correct answer found inside the box wme your answer on the space provided A. by using a bigger core B. core C screw driver D telephone and radio E a nail, battery and a piece of wire 6. Which from the following materials can be used as core in making an electromagnet? 7. Which of the following materials uses an electromagnet? 8. What part of electromagnet receives electricity and acts as a magnet? 9. What is needed to make an electromagnet? B. a bulb, battery and a piece wire? 10. How can you make an electromagnet stronger?
