Explain why you had to close the switch in order for the electromagnet to pick up any paperclips.
Answers
Answer:
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 didn't pick up the paper clip (it's magnetic field was too weak), but the nail and coiled wire did.
Explanation:
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Answer:
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 didn't pick up the paper clip (it's magnetic field was too weak), but the nail and coiled wire did.
Explanation:
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 didn't pick up the paper clip (it's magnetic field was too weak), but the nail and coiled wire did.