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A simple one

Electricity and Magnetism Level 1

Tin cans, used for storing food are made by electroplating tin onto iron . Why?

Tin gives a shiny appearance. Tin is cheaper than Iron. Tin is lighter than Iron. Tin is less reactive than Iron.

Excel in math and science

Master concepts by solving fun, challenging problems.

It's hard to learn from lectures and videos

Learn more effectively through short, conceptual quizzes.

Our wiki is made for math and science

Master advanced concepts through explanations,
examples, and problems from the community.

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including olympiad champions, researchers, and professionals.

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by Abhiram Rao

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