Question
Asked Nov 27, 2019
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in a DC motor why and how the gain K is affected by the amaurtue resistant and induance ? whats the actual units for K.

 
For tau is affect just by taking induance over resistant? thanks
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Expert Answer

Step 1

For DC motor the emf equation is given as:

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Step 2

The above formulae indicate that the constant k is dependent on:

Number of Poles

Flux per pole

Number of armature conductor

Number of parallel paths

From the above data, it is clear that the constant k is independent of the resistance and inductance.

Step 3

Evaluating the units of the consta...

E
k
Volt
k
radian/sec
Volt-sec
k
rad
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Image Transcriptionclose

E k Volt k radian/sec Volt-sec k rad

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