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February 11th, 2018, 01:31 AM | #1 |
Newbie Joined: Feb 2018 From: Afghanistan Posts: 17 Thanks: 0 | ![]() ![]() Last edited by skipjack; February 11th, 2018 at 02:26 AM. |
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February 11th, 2018, 07:44 PM | #2 |
Senior Member Joined: Jul 2012 From: DFW Area Posts: 634 Thanks: 96 Math Focus: Electrical Engineering Applications |
Can you use Ampere's Law and the example given here to solve this? Hint: Normalize the magnetic fields produced by wire 1 and wire 2 at point O to 1 and note their directions. Add the vectors for the resultant magnitude $(\sqrt{2})$ and direction. Then determine the magnitude and direction of the current of wire 3 to cancel the resultant, keeping in mind the distance $(\sqrt{2} \ \text{m})$ from wire 3 to point O. |
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