Synchronous Motors
A synchronous motor can be made self starting by providing

None of the listed here
Damper winding on stator
Damper winding on rotor poles
Damper winding on stator as well as rotor poles

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Synchronous Motors
Synchronous capacitor is

An over excited synchronous motor driving mechanical load
An over excited synchronous motor running without mechanical load
An ordinary static capacitor bank
None of the listed here

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