Electrical Machines
Maximum power developed in a cylindrical synchronous machine depends on

 excitation
 synchronous reactance
 load angle
 both 1and 2

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Electrical Machines
The residual magnetism of a self-excited dc generator is lost. To build up its emf again

 the field winding must be replaced
 field winding must be excited by low voltage dc supply
 the field winding connection must be reversed
 the armature connection must be reversed

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