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AC Or DC?

Electricity and Magnetism Level 1

In many countries, alternating current is preferred over direct current for household electricity. Why?

Producing alternating current is cheaper than direct current. Alternating current can be stepped up and down using transformers. Alternating current is less hazardous than direct current.

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Excel in math and science

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It's hard to learn from lectures and videos

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including olympiad champions, researchers, and professionals.

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by Rohit Gupta

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