04_07_RHR - Today4/7 o Lab Current Balance o Right Hand...

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Today4/7 o Lab “Current Balance” o Right Hand Rule for: o Magnetic Force o Magnetic field o North Pole of a Current Loop o Start reading Ch. 21
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Magnetic Forces Charges experience Magnetic Forces as well as Electric Forces. The Electric force is given by : F = qE The Magnetic force is given by : F = qvB sin θ v is the charge’s velocity, B is the magnitude (strength) of the Magnetic field, and is the angle between v and B . Direction of the Magnetic force is perpendicular to both v and B , and so there are two choices for the force direction
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Magnetic Forces RHR A positive charge moves in a B-field that points to the right. What direction is the force on the charge for each case? Fingers with B , thumb with v , force points in the direction of your palm. v B F = qvB sin θ θ is the angle between v and B. F big, out F = 0 F = 0 F big, in F smaller, in F smallest, in
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Magnetic Forces RHR A positive charge moves to the right in a B-field that points in the direction shown. What direction is the force on the charge?
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This note was uploaded on 12/21/2010 for the course PHYS Physics 21 taught by Professor Larrywatson during the Spring '08 term at North Dakota.

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04_07_RHR - Today4/7 o Lab Current Balance o Right Hand...

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