Armature Resistance in DC Series Motor Formulas

The Armature Resistance is the ohmic resistance of the copper winding wires plus the brush resistance in an electrical dc motor. And is denoted by R_a. Armature Resistance is usually measured using the Ohm for Electric Resistance. Note that the value of Armature Resistance is always positive.

Formulas to find Armature Resistance in DC Series Motor

fxArmature Resistance of Series DC Motor given VoltageGo

DC Series Motor formulas that make use of Armature Resistance

fxArmature Current of Series DC Motor using VoltageGo

fxArmature Current of Series DC Motor given SpeedGo

fxVoltage Equation of Series DC MotorGo

fxArmature Induced Voltage of Series DC motor given VoltageGo

fxSpeed of Series DC MotorGo

fxSeries Field Resistance of Series DC Motor given VoltageGo

fxSeries Field Resistance of Series DC Motor given SpeedGo

fxMachine Construction Constant of Series DC Motor using SpeedGo

fxMagnetic Flux of Series DC Motor given SpeedGo

List of variables in DC Series Motor formulas

fx Supply Voltage Go

fx Armature Voltage Go

fx Armature Current Go

fx Series Field Resistance Go

FAQ

What is the Armature Resistance?

The Armature Resistance is the ohmic resistance of the copper winding wires plus the brush resistance in an electrical dc motor. Armature Resistance is usually measured using the Ohm for Electric Resistance. Note that the value of Armature Resistance is always positive.

Can the Armature Resistance be negative?

No, the Armature Resistance, measured in Electric Resistance cannot be negative.

What unit is used to measure Armature Resistance?

Armature Resistance is usually measured using the Ohm[Ω] for Electric Resistance. Megohm[Ω], Microhm[Ω], Volt per Ampere[Ω] are the few other units in which Armature Resistance can be measured.

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