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4-space Curl in Vector Calculus - Gauge-institute.org

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<strong>Gauge</strong> Institute Journal, Volume 9, No. 3, August 2013<br />

H. Vic Dannon<br />

3.<br />

The Magnetic Induction Forces<br />

the Electron to Spiral towards<br />

the Center<br />

The Lorentz Force on the electron is<br />

<br />

2 2<br />

aB<br />

aB<br />

qv<br />

e e1θ × <br />

1<br />

2<br />

b z = qv<br />

e e<br />

1 <br />

b r,<br />

where ve<br />

is the electron speed, and qe<br />

is the electron charge.<br />

S<strong>in</strong>ce ve<br />

= ωe b , where ωe<br />

is the angular speed, the Lorentz<br />

Force on the electron is<br />

2<br />

<br />

q ω<br />

aB1<br />

.<br />

e e b r<br />

S<strong>in</strong>ce the electron charge<br />

q e<br />

is negative, the force is<br />

aB<br />

( −q<br />

) ω ( −1<br />

).<br />

2<br />

e e b r<br />

<br />

The force direction is opposite to 1 . That is, the force<br />

pushes the electron towards the center, and <strong>in</strong>creases as the<br />

electron gets closer to the solenoid<br />

r<br />

12

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