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What’s the difference between AC and DC?

What's the difference between AC and DC? Photo: Gamerzero/morguefile.com

An off-the-grid novice asked us this question today: What's the difference between AC and DC? There are a few quick answers: AC (Alternating Current) looks like a wave, and DC (Direct Current) looks like a straight line. Batteries or dry cells use DC, while AC comes from your electrical wall outlet. However, if you’re using a portable computer, you’re actually using both AC … [Read more...]

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