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erik [133]
2 years ago
8

A photograph of you and your friends at your 8th birthday party.is it secondary or primary source and why?

Physics
1 answer:
Reptile [31]2 years ago
7 0

Answer:

primary source

Explanation:

the explanation is in the image above

brainliest please

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We need to know about the magnetic field at the center of circular loops of wire to solve this problem. The magnetic field at the center can be determined as

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