Electrical Machines
If the field winding connection of DC shunt motor is changed

 It will run in same direction.
 motor will become slow.
 motor will not run.
  It will run in opposite direction.

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Electrical Machines
In a transformer

 OC test is conducted on HV side and SC test is conducted on LV side
 both Oc and SC tests are conducted on HV side
 OC test is conducted on LV side and SC test is conducted on HV side
 both OC and SC tests are conducted on LV side

ANSWER DOWNLOAD EXAMIANS APP