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dome light, induced current 200

posted by  geof on  Sat Sep 12 10:06 CST 2009
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last visit: Sun Oct 12 01:33 CST 2014
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I put a magnet on the ceiling of my car and then put an LED tap light on the magnet. So I have a bright, reposition-able dome light with a detachable flashlight. It works fine, but magnetic fields induce currents, and so I keep pondering whether the batteries or circuitry will be affected. Any electromagnetic engineers have a comment ?







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    dome light, induced current 200

    posted by  geof on  Sat Sep 12 11:12 CST 2009
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    last visit: Sun Oct 12 01:33 CST 2014
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    Thanks. I had forgotten the moving part about magnetic fields. Too bad I can't add up my many half remembered things to create more whole things.







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    dome light, induced current 200

    posted by  Jorrell on  Sat Sep 12 10:59 CST 2009
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    last visit: Thu Dec 27 03:00 CST 2012
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    Electronics Engineer here. Unless you have a compass up there too, you will experience zero problems. A battery powered electronics device that I designed ten years ago had enough permanent magnets on its bottom that once it was "stuck" to a piece of steel, it took 200 pounds to pull it back off.

    jorrell
    --
    92 245 284K miles, IPD'd to the hilt, 06 XC70, 00 Eclipse custom Turbo setup...currently taking names and kicking reputations!







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