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ΓL(B) = µ₀ ∑ ik

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ΓL(B) = ∑ Bj ∆lj

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The magnetic field's flux thruogh every surface is null:  Φ Ω(B) = 0

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If the area is plain and the electric field is uniform: if it is positive field's lines exit from the positive side, if they're negative they enter into the electric field: Φ s(B) = B S = BS cos α

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It's the ratio between the elementary charge e, equal to the one of the electron, and its mass
e/m e

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It's a cylindrical helix with costant motion

The radius is equal to r=mv/ |q|B

Motion is equal to: S= [2(3.14)m/ |q|B] v||

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It's a uniform circular motion

The radius is given by the formula: r=mv/ |q|B

The period is equal to T= 2(3.14)m/ |q|B

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A CHARGE MOTION IN AN UNIFORM MAGNETIC FIELD

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A CHARGE MOTION IN AN UNIFORM MAGNETIC FIELD

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The tension is directly proportional to the magnetic field. The width of the foil and the speed are costant
V H=dvB

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A foil crossed by current is put in a magnetic field and the direction of the curren is perpendicular to the one of the field; between foil's border you can calculate a potential difference caused by the Lorentz force that act on charge

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Hall Effect - Explained and animated with 3d.

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It's employed by a magnetic field on a charge q with a speed v.

Its modul is F=qvBsena , a is the corner between v and B.

Its direction is perpendicular to the plane defined by vectors v and B

Its verse is given by the law of the right-hand: if the charge is positive, you have to direct your thumb to the speed; if it's negative, you have to direct your thumb in the opposite verse of v.

You can modify the direction of the charge, but you can't change speed's value, because it's perpendicular to charge movement.