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November 01, 2025, 09:12:57 am
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seretide

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Help!
« on: November 08, 2011, 11:48:45 am »
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Hey guys!

Just doing the 2009 physics exam from vcaa and I was stuck at question 4 for electrical power.


How do you know the direction of the current when the battery doesn't seem to show between a + or - terminal?
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BakaNeko

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Re: Help!
« Reply #1 on: November 08, 2011, 12:26:57 pm »
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Question 4 VCAA '09? To the left of the coil and the iron bar you can see the battery. It's just two batteries instead of one but they indicate which end's positive and which is negative so you can just follow it around to the coil and then right hand grip it :D
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2011: Physics Accounting
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Lasercookie

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Re: Help!
« Reply #2 on: November 08, 2011, 05:19:56 pm »
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Quote from: seretide on November 08, 2011, 11:48:45 am
How do you know the direction of the current when the battery doesn't seem to show between a + or - terminal?
If you're given the battery symbol, the long, thinner, end is always the positive terminal.
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