How does an AC induction motor work? Here’s a little animation to summarize things and hopefully make it all clear: Two pairs of electromagnet coils, shown here in red and blue, are energized in turn by an AC supply (not
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How does an AC induction motor work? Here’s a little animation to summarize things and hopefully make it all clear: Two pairs of electromagnet coils, shown here in red and blue, are energized in turn by an AC supply (not
Read moreUnlike toys and flashlights, most homes, offices, factories, and other buildings aren’t powered by little batteries: they’re not supplied with DC current, but with alternating current (AC), which reverses its direction about 50 times per second (with a frequency of
Read moreHow does an ordinary DC motor work? The simple motors you see explained in science books are based on a piece of wire bent into a rectangular loop, which is suspended between the poles of a magnet. (Physicists would call
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