What Is This Tool?
This unit converter facilitates the transformation of electric resistance measurements from EMU of resistance, an older cgs-EMU system unit, to the SI derived unit volt per ampere (V/A), commonly called the ohm. It is designed to help users interpret historical data, perform theoretical calculations involving electromagnetic units, and apply modern practical engineering measures.
How to Use This Tool?
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Enter the electric resistance value measured in EMU of resistance (abohm).
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Select the source unit as EMU of resistance and the target unit as volt/ampere [V/A].
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Perform the conversion to obtain the resistance in SI units (ohms).
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Apply the converted value for engineering analysis, historical data review, or theoretical calculations.
Key Features
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Converts EMU of resistance values to SI electric resistance units (V/A).
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Supports legacy data translation from cgs-EMU to ohms for practical use.
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Provides a clear conversion rate and formula for easy reference.
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Includes practical examples to illustrate typical conversions.
Examples
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Converting 5 EMU of resistance results in 5 × 10⁻⁹ V/A = 5e-9 V/A.
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Converting 200 EMU of resistance results in 200 × 10⁻⁹ V/A = 2e-7 V/A.
Common Use Cases
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Translating electrical resistance values recorded in older CGS–EMU literature to SI ohms for modern interpretation.
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Performing electrical engineering calculations based on electromagnetic formulations using the cgs-EMU system.
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Analyzing historical experimental measurements or archival resistance data published before SI units were widespread.
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Designing and testing electrical components where resistance needs to be specified or calibrated in ohms.
Tips & Best Practices
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Confirm unit definitions before converting to avoid confusion between cgs-EMU and SI systems.
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Use the provided formula 1 EMU of resistance = 1e-9 V/A for accurate manual calculations.
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Check converted values carefully when dealing with extremely small resistance measurements.
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Contextualize converted data properly when applying to modern electrical engineering tasks.
Limitations
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EMU of resistance is an uncommon unit in contemporary practice, making conversions mostly relevant for legacy or theoretical contexts.
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Conversion may introduce precision challenges due to the very small magnitude involved (nanohms).
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Users must avoid mixing cgs and SI units incorrectly to prevent calculation errors.
Frequently Asked Questions
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What is an EMU of resistance?
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EMU of resistance, also known as the abohm, is the unit of electrical resistance in the electromagnetic cgs system, equal to one nanohm (10⁻⁹ ohm).
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Why convert EMU of resistance to volt/ampere [V/A]?
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Converting to volt/ampere allows users to express resistance in the SI derived unit ohm, which is standard for engineering and practical applications.
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Can I use this conversion for modern circuit design?
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Yes, the conversion translates older or theoretical EMU resistance values into ohms, facilitating practical electrical circuit calculations and component specifications.
Key Terminology
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EMU of resistance
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The electrical resistance unit in the cgs electromagnetic system, also called the abohm, equal to 10⁻⁹ ohm.
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Volt per ampere [V/A]
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The SI derived unit for electrical resistance, equivalent to one ohm (Ω), representing the potential difference required to drive one ampere of current.
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Ohm (Ω)
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The standard SI unit for electrical resistance, expressed as volt per ampere.