Ch. 26 Magnetic Forces and Fields - Equations

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13 Terms

1
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permeability constant (mu0)

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2
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<p>Bwire </p>

Bwire

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3
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<p>Bcoil </p>

Bcoil

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4
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5
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<p>magnetic dipole moment (m) of a current loop </p>

magnetic dipole moment (m) of a current loop

A is the area of the loop

<p>A is the area of the loop </p>
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<p>Magnetic force on a moving charged particle </p>

Magnetic force on a moving charged particle

alpha is the angle between the velocity and magnetic field vectors

<p>alpha is the angle between the velocity and magnetic field vectors </p>
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<p>Centripetal force exerted by the magnetic field on the charged particle in cyclotron motion </p>

Centripetal force exerted by the magnetic field on the charged particle in cyclotron motion

Centripetal force = Magnetic force

<p>Centripetal force = Magnetic force </p>
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<p>Radius of the cyclotron orbit (r cyc) </p>

Radius of the cyclotron orbit (r cyc)

m is the mass of the charged particle

<p>m is the mass of the charged particle </p>
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m is the mass of the charged particle

<p>m is the mass of the charged particle </p>
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<p>Magnetic force on a current-carrying wire </p>

Magnetic force on a current-carrying wire

alpha is the angle between the current and magnetic field vectors

<p>alpha is the angle between the current and magnetic field vectors </p>
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<p>Force between to parallel current-carrying wires </p>

Force between to parallel current-carrying wires

I1 is the current of one wire. I2 is the current of the second wire.

d is the distance between the two wires

<p>I1 is the current of one wire. I2 is the current of the second wire. </p><p>d is the distance between the two wires </p>
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<p>torque on a current loop (tau) </p>

torque on a current loop (tau)

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<p>potential energy of a magnetic dipole (U mag) </p>

potential energy of a magnetic dipole (U mag)

theta is the angle between the magnetic dipole moment and magnetic field vectors

the minimum potential energy is when theta = 0 degrees

-cos(0) = -1, U = -mB

the maximum potential energy is when theta = 180 degrees

-cos(180) = 1, U = mB

<p>theta is the angle between the magnetic dipole moment and magnetic field vectors</p><p></p><p>the minimum potential energy is when theta = 0 degrees </p><p>-cos(0) = -1, U = -mB </p><p></p><p>the maximum potential energy is when theta = 180 degrees </p><p>-cos(180) = 1, U = mB</p>

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