Armature Resistance in DC Shunt 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 Shunt Motor

fxArmature Resistance of Shunt DC Motor given VoltageGo

DC Shunt Motor formulas that make use of Armature Resistance

fxArmature Current of Shunt DC Motor given VoltageGo

fxVoltage of Shunt DC MotorGo

fxMachine Construction Constant using Speed of Shunt DC MotorGo

List of variables in DC Shunt Motor formulas

fx Supply Voltage Go

fx Back EMF Go

fx Armature Current 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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