what is the use of spst switch in performing experiment on self excited dc motor

what is the use of spst switch in performing experiment on self excited dc motor?

Question Posted / rathi

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what is the use of spst switch in performing experiment on self excited dc motor?..

Answer / k.prakashchandra

Field breaker

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what is the use of spst switch in performing experiment on self excited dc motor?..

Answer / pinky

plz clear ur answer....

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