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Let's Try (Evaluation) A. Directions: Read each sentence carefully and write the letter of the correct answer.
1. What material is produced when a coil of wire is wind around an iron nail?
A. battery
B. circuit
C. electromagnet
D. magnet

2. Which does not affect the magnetism of an electromagnet?
A. magnet
B. number of the batteries
C. number of coils
D. size of nail

3. Which makes the force of an electromagnet stronger?
A. bigger iron nail
B. less battery
C. less coils of wire
D. more bar magnets

4. What happens when you disconnect an electromagnet from a battery?
A. It will explode.
B. It will stop from attracting materials.
C. It will continue attracting non-metals.
D. Nothing will happen.

5. The following are the uses of electromagnet EXCEPT?
l. Use in transmitting signals.
ll. Use transmitting signal through telephones,radio, and television.
lll. Use appliances,modern,gadgets, and battery generated toys.
lV. Used in making cosmetics.

A. l only
B. l and ll
C. lV only
D. ll and lll

(help please matinong answer sana)​