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The Electromagnetic System of Units (EMU)
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Description
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The electromagnetic system of units (EMU) has the centimeter, gram, second, and biot as its base units, where the biot is energy-equivalent to the unit square root dyne ( ). For naming consistency, the biot is called the abampere.
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When used in conjunction with the UseSystem command, the electromagnetic system sets the following units for the given dimensions.
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Dimension Name
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Unit Name
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length
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centimeter
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mass
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gram
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time
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second
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speed
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kyne
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acceleration
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gal
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force
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dyne
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energy
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erg
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power
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erg per second
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pressure
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barye
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electric current
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abampere
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electric charge
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abcoulomb
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electric capacitance
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abfarad
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magnetic inductance
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abhenry
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electric conductance
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absiemens
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electric resistance
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abohm
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magnetic flux density
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abtesla
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electric potential
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abvolt
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magnetic flux
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abweber
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plane angle
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radian
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solid angle
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steradian
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Examples
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Electromagnetic units can be converted to their energy equivalents.
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If infolevel is set to a greater integer (possible settings are 1 through 5), more detailed information about the computation method is displayed.
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![infolevel[Units] := 1](/support/helpjp/helpview.aspx?si=9448/file03265/math216.png)
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convert/system: "converting to the units erg/s"
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convert/system: "converting to the units abS"
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![unassign('infolevel[Units]')](/support/helpjp/helpview.aspx?si=9448/file03265/math240.png)
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![with(Units[Standard])](/support/helpjp/helpview.aspx?si=9448/file03265/math244.png)
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](/support/helpjp/helpview.aspx?si=9448/file03265/math248.png)
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Download Help Document
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