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July 11th, 2016, 02:48 AM   #61
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i am not getting how relay coil are designed at 12v ?
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July 11th, 2016, 03:05 AM   #62
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The relay coil has some resistance, lots of turns gives a nice mag field to make the contact move and enough resistance not to draw a big current.
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July 11th, 2016, 03:46 AM   #63
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how it is designed at 12V what we should keep in mind while rotating coiol on it?
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July 11th, 2016, 05:59 AM   #64
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I have no idea how to design one, I suspect there's quite a lot to consider, which is why there are so many to choose from.
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July 17th, 2016, 10:49 PM   #65
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how ac electromagnet are designed because they change magnetic field each cycle?
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July 18th, 2016, 12:22 AM   #66
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This stuff is really easy to google.
What is the difference between AC and DC relays?
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July 22nd, 2016, 01:01 AM   #67
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Hello,
I have seen some inductor with material in it but it does not make magnet what is this?
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July 22nd, 2016, 01:34 AM   #68
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https://en.wikipedia.org/wiki/Ferrite_core
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