Answered

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Guide Questions
1. What happened when the pointed end of the iron nail got nearer to the small metallic pins?
2. What flowed along the iron nail? How did it affect the electromagnetism produced by the iron nail?
3. How did your ability to pick up pins with the nail change when you decreased the number of turns in
the coil?
Conclusion:
How does electromagnetism happen in an electromagnetic coil?​

Sagot :

Jendukie83idn
  1. That's because a coiled wire creates a stronger magnetic field than a simple length of wire (the more coils, the stronger the field), and adding an iron nail in the middle boosts that field even more. The wire itself did not pick up the paper clip (its magnetic field was too weak), but the nail and coiled wire did
  2. Current flowing through the wire in a loop around the nail creates a magnetic field. The electromagnet becomes stronger with each additional coil twisting around the nail. Increasing the battery voltage has the same effect.
  3. The Effect of the Number of Coils on an Electromagnet On Its Strength. affect an electromagnet's strength.

Hope it's help

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