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04_16_Induction

# 04_16_Induction - Find the force on wire 3 caused by wire 1...

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Today4/16 o Magnetic Induction, Ch 22 o HW: 4/16 “Wires 2” Due Wednesday, 4/23 o Friday and Monday are holidays! o Lab: e/m ratio for electron: Questions? o Today is an intro to induction-mostly demos

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Lab: e - radius of curved path Electron gun V Current carrying coils (two separate coils) Exactly like HW due today
Right Hand Rules: o RHR #1 o About Effect of B-field o Connects Force, B-field, and v or I o F = qvBsin θ or F = I l Bsin θ o RHR #2 o About Cause of B-field o Connects I with B-field o B = μ o I/2 π r

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Magnetic Forces, Wires

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Unformatted text preview: Find the force on wire 3 caused by wire 1 and 2. I I I Wires 2 HW is just like this with a different geometry and currents. Magnetic Induction We need a model for the jumping ring There is no battery to push current around the ring as was the case in all examples so far. (See 4/10 and 4/11 HW) Major Question: What pushes current around the loop???? Magnetic Induction First clue comes from this example: S N moving ring Use RHR #1...
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04_16_Induction - Find the force on wire 3 caused by wire 1...

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