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November 01, 2025, 09:24:35 am
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Author Topic: Confusion  (Read 615 times)  Share 

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meefz

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Confusion
« on: October 22, 2010, 05:26:15 pm »
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VCAA 2009 exam.
question 4 section one.
An explanation would be much appreciated.
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Whatlol

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Re: Confusion
« Reply #1 on: October 22, 2010, 05:34:01 pm »
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What you need to do is pick a point on the coil and then apply the right hand grip rule. For example, at the very most right side of the coil, where it has a "turning point" the current is into the page.  This gives you an clockwise magnetic field flowing around the right side of the coil.
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failed uni

Blakhitman

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Re: Confusion
« Reply #2 on: October 22, 2010, 05:43:46 pm »
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With solenoids, you use your fingers as the current, so knowing the current is going from positive to negative, you would curl your fingers around the solenoid from the right, so your thumb faces up. Then you know the top is the north pole of the field then draw fields going from top to bottom as you would a bar magnet.
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TyErd

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Re: Confusion
« Reply #3 on: October 23, 2010, 12:28:57 pm »
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exactly what Blakhitman said
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